It is believed that the widespread use of the “grid”will become possible in the next________.
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《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
Something must have happened on their way here. Or they ________by now.
A. should have arrived B. should arrive C. would have arrived D. would arrive
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