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英语
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__ cell phones can keep in touch with your friends easily
a:by using
b:using
c :with
d:on
答案以及原因
人气:147 ℃ 时间:2019-09-17 05:57:28
解答
选B.
这句话里缺的是一个主语,动词作主语有两种形式,一个是ing,一个是to do,这里选择ing,其他有介词的形式是不行的,因为介词加名词只能做状语,不能作主语.
句子的意思是:使用手机能容易地朋友保持联系.
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