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parentsnowspendmoretimeintheoffice,so(此处用so还是用but?)theydon'thavemuchtimetostaywiththeirchildren.Peoplehavecutdownmillionsand(millions/billions)oftrees.

题目详情
parents now spend more time in the office,so (此处用so还是用but?)they don't have much time to stay with their children.
People have cut down millions and ______(millions/billions)of trees.
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答案和解析
第一句是so.用中午就能很容易听出来
-->家长现在在办公室花太多时间.所以没空陪孩子.
-->家长现在在办公室花太多时间.但是没空陪孩子.(难道花时间在办公室就应该有空陪孩子吗?)
第二个是millions and millions.没有原因.就是这么用的.要是billions.一定得是billions and billions.