If you don’t study English all the time, you’ll have a difficult time ____ it in the future.
#50597
A
studying
B
to studying
C
studied
D
be studying
推荐题目
Our teacher told us _________ too much noise in class.
#49786
A
to make
B
make
C
not to make
D
not make
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