Question

Present Perfect? or Past Simple? Choose the correct form of the verb. 1. Lewis (changed, has changed) his clothes three times today. 2. 2. It is early auturnn but many birds (left, have left) for warmer countriesalready. 3. We (walked, have walked) to the park yesterday. 4. Jane (did, has done) her homework after dinner.5. We (hurried, have hurried) to the bus stop because we did not want to be late.6. Already this spring, my grandparents (planted, have planted) many kinds of flowers and vegetables in their garden. 7. We (watched, have watched) TV in the evening, and then wentto bed.8. Where is Nancy? She (went, has gone) to the shop for milk and eggs.9.We (learned, have learned) a lot of English words already. 10. The campers (saw, have seen) a family of deer in the forest last Sunday.11. In October the days (became, have become) much colder.12. John (came, has come) back at 8 o'clock.​

Answer 1

1. has changed.
2. have left.
3. walked
4. did
5hurried
6. have planted
7. watched
8. went
9. have learnt
10 saw
11 have become
12 has come

Answer 2

Present Perfect? or Past Simple?

1. Lewis (changed, has changed) his clothes three times today. The correct form is has changed. This is because the action of changing clothes is connected to the present day and is not specified to have occurred at a particular time in the past.

2. It is early autumn but many birds (left, have left) for warmer countries already.

The correct form is have left. This is because the action of the birds leaving is connected to the present time and is not specified to have occurred at a particular time in the past [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

3. We (walked, have walked) to the park yesterday.

The correct form is walked. This is because the action of walking to the park is specified to have occurred at a particular time in the past, yesterday [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

4. Jane (did, has done) her homework after dinner.

The correct form is did. This is because the action of doing her homework is specified to have occurred at a particular time in the past, after dinner.

5. We (hurried, have hurried) to the bus stop because we did not want to be late.

The correct form is hurried. This is because the action of hurrying to the bus stop is specified to have occurred at a particular time in the past, and there is no connection to the present time [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

6. Already this spring, my grandparents (planted, have planted) many kinds of flowers and vegetables in their garden.

The correct form is have planted. This is because the action of planting is connected to the present time, this spring, and is not specified to have occurred at a particular time in the past.

7. We (watched, have watched) TV in the evening, and then went to bed.

The correct form is watched. This is because the action of watching TV is specified to have occurred at a particular time in the past, in the evening [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

8. Where is Nancy? She (went, has gone) to the shop for milk and eggs.

The correct form is has gone. This is because the action of going to the shop is connected to the present time, and there is no specific time mentioned in the past when she went to the shop [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

9. We (learned, have learned) a lot of English words already.

The correct form is have learned. This is because the action of learning English words is connected to the present time and is not specified to have occurred at a particular time in the past.

10. The campers (saw, have seen) a family of deer in the forest last Sunday.

The correct form is saw. This is because the action of seeing the family of deer is specified to have occurred at a particular time in the past, last Sunday [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

11. In October the days (became, have become) much colder.

The correct form is became. This is because the action of the days becoming colder is specified to have occurred at a particular time in the past, in October [[1]](https://www.academia.edu/18698805/Shared_Pasts_in_Central_and_Southeast_Europe_17th_21st_Centuries_Hungarian_and_Bulgarian_Approaches_Eds_G%C3%A1bor_Demeter_Penka_Peykovska_Sofia_Budapest_2015_440_p).

12. John (came, has come) back at 8 o'clock.

The correct form is came. This is because the action of coming back is specified to have occurred at a particular time in the past, at 8 o'clock.