Qian Xuesen devoted all his life to ________________ China’s Space Program.
#49535
A
develop
B
developing
C
developed
D
develops
推荐题目
I prefer to .
#49984
A
reading books; watching TV
B
read books; watching TV
C
reading books; watch TV
D
read books; to watch TV
We have so many kinds of guitars for you ________.
#49705
A
to choose
B
to choose from
C
to be chosen
D
to be chosen from
Last year he had an opportunity _______ in Oxford University, but he gave it up.
#50343
A
study
B
to study
C
of study
D
for studying