优优班--学霸训练营 > 知识点挑题
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            • 1.

              He is going camping in the mountains alone, _______ his friends have told him not to.

              A.as if
              B.even if
              C.only if
              D.what if
            • 2. No matter ________ hard it may be,I"ll carry it out.(  )
              A.what
              B.whatever
              C.how
              D.however
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