Qian Xuesen devoted all his life to ________________ China’s Space Program.
#49535
A
develop
B
developing
C
developed
D
develops
推荐题目
-What are you busy doing, Sandy?- I’m making some flash cards _________ me remember English words.
#48974
A
help
B
to help
C
helping
D
helped
My teacher used to _______ a bike to school, but now he is used to ________ a car to work.
#50647
A
ride, driving
B
ride, drive
C
riding, drive
D
riding, driving
There are so many kinds of pens in the shop ,I can’t decide ______.
#50047
A
when to buy
B
where to buy
C
what to buy
D
which to buy
— like the cat? —Because she’s kind of boring and she’s lazy.
#48605
A
Why you
B
Why do you
C
Why not you
D
Why don’t you.