2. You give me your bike . Thank you. (改为同意句)

　　　 Thank you ___ ___ me your bike.

1. You must correct your mistakes. (改为被动语态)

　　　Your mistakes　 ___ ___ ___.

5．　　 They have___(修建)a new Great Green Wall across the northern.

4．　　 4. There are twenty more trees to be___(栽).

3．　　 3. So the more trees there are, the better___( 收获)we have.

2．　　 The Great Green Wall will stop the wind from___(吹)the earth away.

1．　　 Knock a long, strong ___ (树棍)into the earth in the hole.

5．　　 Is the room large enough f___ 100 people.

　　　　 B. 根椐汉语，写出单词的正确形式。

4．　　 These young trees will grow up in a few y___ time.

3．　　 Must the ground be n___ too wet nor too dry?