单项选择题

It was (when) she was (about) (to go) to bed (while) the telephone rang.

A. when
B. about
C. to go
D. while
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单项选择题
He was speaking to a stranger (whom), (I think), (was asking) him (something).
A. whom
B. I think
C. was asking
D. something
单项选择题
Tom and I (are) looking forward to (be seeing) you, (so) don't (disappoint) us!
A. are
B. be seeing
C. so
D. disappoint
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