Sorry, I don’t know he is a friend of _________.
A. your brother B. your brothers C. your brother’s friend D. your brother’s
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It is believed that the widespread use of the “grid”will become possible in the next________.
《中华人民共和国招标投标法》规定，在我国境内可以不进行招标的项目是（）。
A. attract B. pull C. hold D. contain
Before joining the army, he spent a lot of time in the village ________ he belonged.
A. to which B. which C. to where D. at which
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