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A. How long has; left B. When did; leave C. When was; leaving D. When has; left.

A. Do; has B. Does; has C. Does; have D. Do; have

A. in B. on C. at D. By

A. hundred B. hundreds C. hundreds of

A. Do; do B. Does; do C. Does; does D. Is; doing

【題目】— What's the matter with the computer?
—It is dead now.
A.is not alive
B.is not useful
C.doesn't work

A. on; at B. at; in C. in; on D. at; at

A. who are you

B. what did you do

C. how he get the money

D. where she will go

A. stand B. to stand

C. standing D. from standing

A. in; at B. at; in C. on; at D. in; on