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单项选择题

A．Because they had to wait for a long time by the lift.
B．Because they were bored for nothing to do but standing by the lift.
C．Because the lift was slow.
D．Because there were not enough lifts in the building.
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热门试题

单项选择题A．He’s spoken to him on the phone.B．He stayed in his apartment one summer.C．He went on a summer trip with him.D．He used to work with him.

A．He’s spoken to him on the phone.
B．He stayed in his apartment one summer.
C．He went on a summer trip with him.
D．He used to work with him.

单项选择题A．Excellent quality.B．Large productivity.C．Good flavor.D．Both A and B.

A．Excellent quality.
B．Large productivity.
C．Good flavor.
D．Both A and B.