7.Few ________ words made us excited.　 (speak)

6.The doctor said that Mary’s　 mother needed an _________.(operate)

5.The police have __________ a plot against the President. (cover)

4.The boy had the ___________ of being half starved. (appear)

3.Please give me some reference work. It will ________ my task. (simple)

2.We want ___________ reasons for your failure to help. (satisfy)

1.Edison was a great ________. During his life he had many __________. (invent)

7. I would rather you ______ (come) tomorrow.　

(Keys:　 1. had;　 2. had come;　 3. Should; 4. worked;　 5. hadn’t spent;　 6. have;　 7.came)

构词法精炼

6. The students insisted that they _______ (have) more English classes.

5. I wish I ________ (not spend) so much money.