She looks very busy . I want to help her , but I don't know ___________ .
#50250
A
what to do
B
what to do it
C
how to do
D
why to do
推荐题目
Before I started high school, I used to spend a lot of time _____ games with my friends.
#50758
A
play
B
plays
C
playing
D
played
—Mr. Ding, I have some problems_______ the passage.—Remember_______ it three or four times at least.
#48495
A
to understand; reading
B
understanding; reading
C
to understand; to read
D
understanding; to read