He can always think up a good idea____ when others have problems. A.in time B.on time C.at times D.a...
2022-09-20 12:03:24 68次 冀教版英语九年级全册Unit 3 Safety Lesson 14 Accidents Happen课时练习 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
He can always think up a good idea____ when others have problems.
A.in time B.on time C.at times D.at no time
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