优优班--学霸训练营 > 知识点挑题
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            • 1.

              We all have some doubt ________ he is the man who saved that girl.

            • 2.

              The question _________ will take his place is still not clear

            • 3.

              Before the G20 Leaders Summit, some factories in Hangzhou followed the government's requirement that they ________ their production to temporarily (暂时) reduce air pollution.

              A.stopped
              B.must stop
              C.stop
              D.might stop
            • 4. Do you have any idea that is actually going on in the classroom?

              ________________________________________________________________

            • 5.
              如果我预付款的话是不是有折扣?

              Is there a discount ________ I pay ________  ________ ?

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