1 . Mr. Ma has a bakery. He is good at ________ (bake) bread and cakes.

2 . It took the workers two years to build the bridge.（保持句意不变）
The workers ________ two years ________ the bridge.

3 . He enjoyed playing with toy cars at a very early age.（对划线部分提问）
_________ did he enjoy _________ at a very early age?

4 . Kitty enjoys ________ as a secretary in the city centre.

A．work

B．worked

C．working

D．to work

5 . Luna has ________ in bed for two hours after ________ the book on the desk next to her bed.

A．lied, lying

B．lay, lain

C．laid, lying

D．lain, laying

6 . —It’s raining heavily outside, isn’t it?
—Yes, it is. I prefer ________ to ________ on such a bad day.

A．staying at home; going out	B．to stay at home; go out
C．to stay at home; going out	D．staying at home; to go out

7 . —Where is Linda?
一 She ________ in the library. She enjoys ________.

A．is reading, reading

B．is reading, read

C．reads, reading

D．reads, reads

8 . We are looking forward to ________ you soon.

A．hearing a letter

B．hear from

C．hearing from

D．hear a letter from

9 . One is never too old to learn, so we should keep ________ all our life.

A．learn

B．to learn

C．learned

D．learning

10 . —How was your school trip?
—It was OK. We spent three hours ________ the mountains.

A．to climb

B．climbed

C．climbing

D．climb