10.　　 Hydrogen ____________(结合) with oxygen to form water.

Exercise 2 根据句意, 用所给的词或词组的最恰当形式填空(注意有多余选项)

9.　　　　 Dao Lang is ____________ (受欢迎的) among the youth.

8.　　　　 The subject has already been fully _____________(研究).

7.　　　　 He could do nothing but stand and ___________ (惊讶).

6.　　　　 Because they didn’t reach any agreement, they had to make a _________(折中) decision.

5.　　　　 I’ve had the b___________ of a good education.

4.　　　　 Did Lucy m_________ when she would come to see me?

3.　　　　 Tom would never a__________ to being wrong.

2.　　　　 He gave in to c_________ and opened the letter addressed to his classmate.

1.　　　　 Don’t take some e___________ exercise when you have caught a cold.