Hãy phân tích mối quan hệ giữa kiểu gen, môi trường và kiểu hình thông qua một ví dụ cụ thể (giống - biện pháp kĩ thuật - năng suất). Từ đó rút ra kết luận gì?

Choose the best answer to complete each sentence.

1. It is necessary ........... for that book.

A. to look

B. looking

C. look

2. It is very simple to ............ this machine.

A. to use

B. used

C. use

3. She was excited ........ a letter from her mother last week.

A. to receive

B. receive

C. receiving

4. We are very surprised to ........ Peter at the party.

A. seeing

B. see

C. seen

5. Your handwriting is ...........

A. hard to read

B. hard for reading

C. hardly to read

6. She has the ...... well with work pressure.

A. able to cope

B. ability for coping

C. ability to cope

7. Susan made a great effort ............. all homework before the deadline but it was in vain.

A. for accomplishment.

B. to accomplish

C.accomplish

8. Jack harbors an ambition ............ an inspiring teacher.

A. being

B. be

C. to be

9. It is important ............. us to hand in the report on time.

A. to

B. for

C. of

10. It is ........... of him to help the poor.

A. generous

B. generously

C. generosity

Rewirte the sentences without changing the meaning. Remember to use the structure: adjctive + that clause
1. We are delighted. Everyone enjoys our homemade cakes.
2. He is so pleased. His parents are waiting at the school gate to take him home.
3. I am so happy. My brother got a safe flight.
4. We afraid. We can't join the party with you.
5. I'm so sorry. I lost your favourite pen on my way home.
6. Thu was anxious. She has lost her identity card.
7. She is certain. Her son will be accepted to a high for the gifted.
8. My father is upset. My brother wants to drop out of high school.
9. He is amazed. His colleagues celebrate his birthday in a fun way.
10. She was worried. Her father's surgery would be unsuccessful.