单项选择题

She didn't go to the party last night, ______ she had to finish her term paper.

A．if
B．though
C．till
D．because
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单项选择题
Not until yesterday （）anything about the project that will be completed soon.

A．did I learn
B．have I learnt
C．I learnt
D．that I learnt
问答题
On July 10 the company will hold its first worldwide video conference (电视会议). All twenty facilities will be linked by a satellite broadcasting system so that employees can see and speak with each other. Mr. Black will begin the conference by telling us about our goals for the next five years. Next, each manager will speak about current challenges. The last hour will be devoted to questions from all locations. If it proves successful, we hope to schedule worldwide video conferences annually.
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