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        1. The young trees should______ as often as possible.
          A.take care ofB.be take care of
          C.be taken care ofD.be taken care
          C

          試題分析:這些小樹應(yīng)該盡可能的受到經(jīng)常的照顧。結(jié)合語境可知句子主語是動作對象,故用被動語態(tài)。選項B需變成過去分詞,選項D缺少介詞of。故選C。
          點(diǎn)評:此類題型主要是確定句子主語與謂語動詞的關(guān)系。如果是主動關(guān)系則用主動語態(tài),反之如果是動賓關(guān)系,則用被動語態(tài)。
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