题目内容
----What are they doing?
----They are ______.
[ ]
A. writing down the new words B. write down the new words
C. write the new words down D. writting down the new words
答案:A
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题目内容
----What are they doing?
----They are ______.
[ ]
A. writing down the new words B. write down the new words
C. write the new words down D. writting down the new words