2. 外语
  3. There is a stranger outside. I have been______ (密切注意他) for a while.

There is a stranger outside. I have been______ (密切注意他) for a while.

admin2013-06-17  40
问题 There is a stranger outside. I have been______ (密切注意他) for a while.
选项
答案keeping an eye on him
解析 “密切注意某人”用固定短语keep an eye on sb．表达。have been提示此处为现在完成进行时，故本题答案为keeping on an eye on him。
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大学英语四级

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