—We have a tight schedule, so you mustn't __________ staring at the ceiling. —No, I won't.
How______I help them to understand when they won’t listen to me?
So hard _______ that he can go to an ideal university.
QQ, ______you can chat with your friends, makes communication easy.
These tax laws which are intended for domestic companies do not _____ to foreign companies.
The film is very humorous but______can be enjoyed unless you understand English culture.