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MrSmithisvery()abouthisson'shealthAworryaboutBworryatCworriiedaboutDworriedat为什么选择C呢,应该不用过去式呀

题目详情
Mr Smith is very ( )about his son's health
Aworry about
Bworry at
Cworriied about
Dworried at
为什么选择C呢,应该不用过去式呀
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答案和解析
c不是过去式,是worry的形容词形式,be worried about是固定的短语词组搭配,表示“为.感到担心”
这道题如果说Mr Smith( his son's health very much.
那么就用该填worries about