1 . Wind power units are placed ______ there is a lot of wind.
A.where | B.when | C.which | D.that |
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13-14高三上·辽宁·开学考试
2 . The school has developed an online system students can choose their own teachers.
A.which | B.that | C.whom | D.where |
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3 . During the reconstruction of the city, many modern tall buildings went up ______ old shabby houses were torn down.
A.where | B.in what | C.in which | D.which |
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