I will ______ here till you give me some money.
A. leave
B. not leave
C. come
D. return
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I _____ here since I moved here.
A. will work
B. worked
C. work
D. have been working
_____six years since I began studying English.
A. They have been
B. it is
C. It was
D. There are
They ______ the Summer Palace three times.
A. have gone to
B. have been to
C. have been in
D. have gone into
"How long haven't we seen each other? ""Well, it _____ nearly two years since we ______ last. "
A. is/have met
B. was/had met
C. is/met
D. has been/had met
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