摘要：从A.B.C.D四个选项中.选出可以填入空白处的最佳选项.1. First of all, my company, I’d like to extend our warmest welcome to the distinguished guests from Beijing University. A. instead of B. apart from C. on behalf of D. in place of
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从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。Some pre-school children go to a day care center, __________ they learn simple games and songs.
- A.then
- B.there
- C.while
- D.where
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
The manager suggested an earlier date ____________ the meeting.
- A.on
- B.for
- C.about
- D.with
从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。
I won't call you, ________ something unexpected happens.
- A.unless
- B.whether
- C.because
- D.while