Question

2 Perhaps he is waiting outside. He … 3 It's possible she will work late tonight. She … 4 It's likely he was driving too fast. He … 5 It's possible they made a mistake. They … 6 Perhaps he has missed the bus. He … 7 It's possible she has been playing in the snow. She … 8 It's likely we will be leaving tomorrow. We … 9 It's likely he will stay there. He … 10 Perhaps she had been trying to call you. She … 11 It's likely they had seen the film already. They … 12 It's possible he is studying in the library. He …

Answer 1

2 Perhaps he is waiting outside. He may/might/could be waiting outside.

3 It's possible she will work late tonight. She may/might/could work late tonight.

4 It's likely he was driving too fast. He may/might/could have been driving too fast.

5 It's possible they made a mistake. They may/might/could have made a mistake.

6 Perhaps he has missed the bus. He may/might/could have missed the bus.  

7 It's possible she has been playing in the snow. She may/might/could have been playing in the snow.

8 It's likely we will be leaving tomorrow. We may/might/could be leaving tomorrow.  

9 It's likely he will stay there. He may/might/could stay there.  

10 Perhaps she had been trying to call you. She may/might/could have been trying to call you.

11 It's likely they had seen the film already. They may/might/could have seen the film already.

12 It's possible he is studying in the library. He may/might/could be studying in the library.

Answer 2

2. Perhaps he is waiting outside. He might be waiting outside.

3. It's possible she will work late tonight. She may work late tonight.

4. It's likely he was driving too fast. He probably was driving too fast.

5. It's possible they made a mistake. They could have made a mistake.

6. Perhaps he has missed the bus. He may have missed the bus.

7. It's possible she has been playing in the snow. She might have been playing in the snow.

8. It's likely we will be leaving tomorrow. We will probably be leaving tomorrow.

9. It's likely he will stay there. He will probably stay there.

10. Perhaps she had been trying to call you. She might have been trying to call you.

11. It's likely they had seen the film already. They probably had seen the film already.

12. It's possible he is studying in the library. He could be studying in the library.