题目内容
He referred to his notebook ________ when he gave the talk.A.now and then
B.for a while
C.here and there
D.all over
答案:A
解析:
提示:
解析:
| now and then 时不时
for a while 一段时间 here and there 到处
all over 到处,遍及
|
提示:
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