___were all very tired, but none of ____ would stop to take a rest.
A. We, us
B. Us, we
C. We, our
D. We, we
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I think _____necessary to learn English well.
A. its
B. it
C. that
D. that is
The dog ____ mad.
A. looks
B. is looked
C. is being looked
D. look
10.I will never forget the day ______ I joined the army.
A. that
B. when
C. in which
D. where
It is difficult for me ______ so much work within one night. Can you help me?
A. finish
B. finishing
C. to finish
D. finished
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