题目内容
--- ________ he to smoke?
--- Yes, he ________. But now he doesn't.
[ ]
A．used; used
B．used; used to
C．Did; used to
D．Used; did
答案：B
解析：
解析：
|
解析： used to do疑问式有两种：①Used＋主语＋to do sth? ②Did＋主语＋use to do sth? 若疑问形式用did，回答也相同；若用used提问，回答也用used to。 |
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