It's very kind of you ____ me with the work.
A. help
B. helping
C. to help
D. helped
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It is no use ____ about the matter with him.
A. arguing
B. to argue
C. argued
D. argue
It will take a whole day ____ the top of the mountain on foot.
A. to get to
B. get to
C. getting to
D. got to
____ is important that we should study hard.
A. It
B. This
C. That
D. What
____ doesn't matter what he says.
A. It
B. This
C. That
D. Which