" When ______ school begin?" " Next Monday. "
A. has
B. does
C. did
D. is going to
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I will ______ here till you give me some money.
A. leave
B. not leave
C. come
D. return
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