优优班--学霸训练营 > 知识点挑题
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            • 1.

              ____ counts is ____ all those trapped in the building have been rescued.

              A. It; that          B. What; because

              C. What; that         D. Which; because

               

            • 2.

              (2013·安徽名校联考Ⅰ)________ some students are not aware of is ________ difficult life can be if they are not devoted to study.

              A.That; how  B.Which; what

              C.What; what  D.What; how

               

            • 3.

              It is uncertain ________ side effect the medicine will bring about, although about two thousand patients have taken it.(2010·浙江)

              A.that  B.what  C.how  D.whether

               

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