Question

5.9. Заполните пропуски в предложениях модальными глаголами can, may или must: 1.One … identify many plants by studying their leaves. 2.Only plants … create food, animals obtain food only by eating plants or other animals. 3.A leaf … manufacture food by means of photosynthesis, otherwise a plant will die. 4.The structure of a leaf … be different in various species. 5.A leaf … capture the sun\'s energy and build complex molecules from raw materials. 6.You … see the midrib of the blade without a microscope. 7.Dicot leaves … be either simple or compound. 8.The leaf edge … be indented in various ways. 9.Eucalyptus trees grow in California, but these broad-leavedevergreens … not compete successfully with deciduous trees where the climate turns cold. 10.You … not touch that plant! It\'s poisonous. 11.You … take those flowers, I\'ll bring some more. 12.Whatever man does to his forests, he … consider the whole ecosystem, including the soil in its relationship to vegetation. 13.Larches are one of the few species that … stand the climate close to the frigid, empty tundra. 14.A plant … adjust itself to the environment in which it grows if it is to survive.

Answer 1

1. One can identify many plants by studying their leaves.

2. Only plants can create food, animals obtain food only by eating plants or other animals.

3. A leaf must manufacture food by means of photosynthesis, otherwise a plant will die.

4. The structure of a leaf may be different in various species.

5. A leaf can capture the sun's energy and build complex molecules from raw materials.

6. You can see the midrib of the blade without a microscope.

7. Dicot leaves can be either simple or compound.

8. The leaf edge can be indented in various ways.

9.Eucalyptus trees grow in California, but these broad-leaved evergreens cannot compete successfully with deciduous trees where the climate turns cold.

10. You must not touch that plant! It's poisonous.

11. You may take those flowers, I'll bring some more.

12. Whatever man does to his forests, he must consider the whole ecosystem, including the soil in its relationship to vegetation.

13. Larches are one of the few species that can stand the climate close to the frigid, empty tundra.

14. A plant must adjust itself to the environment in which it grows if it is to survive.

Answer 2

can
can
must
may
can
can
can
can
can
must
may
must
can
must

Answer 3

1. can
2. can
3. must
4. may
5. can
6. can
7. may
8. may
9. may
10. must
11. may
12. must
13. can
14. must