Students should learn how problems.
#49250
A
solve
B
solving
C
can solve
D
to solve
推荐题目
Could you please ______ loudly in the library?
#49465
A
don’t talk
B
don’t say
C
not to talk
D
not talk
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
At last, Tom made the baby ________ and began to laugh.
#51172
A
stop to cry
B
stop crying
C
to stop to cry
D
to stop crying