单项选择题

It was two hours that we spent ______ all the trees.

A. to be planted
B. planting
C. to plant
D. planted
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问答题
First of all, allow me to thank all of you for your kind invitation to the party. I’m greatly honored to have such a chance to visit your country. My visit is both interesting and memorable. It is not only a source of pleasure but also an opportunity to discuss some important problems with Chinese scholars. I’ve gained a lot from my visit.
填空题
( ) 工作经验 ( ) 测试候选人的情商
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