—Do you know who the first spacewoman in the world is?—I’ve no idea. But it’s reported that the first Chinese spacewoman will be selected _____ a task in the Shenzhou-9 spacecraft this summer.
#50627
A
perform
B
performing
C
to perform
D
to performing
推荐题目
I can’t send an e-mail. Would you please teach me   it?
#48901
A
how doing
B
when to do
C
what doing
D
how to do
-- The math problem _________ is not difficult. --- But after several tries , I have to give up _________ on it .
#49383
A
it’s , working
B
itself , to work
C
itself , working
D
its , to work
If I felt some pain, I’d stop _______ .
#50341
A
exercised
B
to exercise
C
exercising
D
exercise