Tom was about to close the window______________ his attention was caught by a b

题型：同步题难度：来源：

Tom was about to close the window______________ his attention was caught by a  bird.   [     ]
A. when
B. if
C. and
D. till

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举一反三

She had just finished her homework______________ her mother asked her to practise playing the piano yesterday.    [     ]
A. when
B. while
C. after
D. since

题型：同步题难度：| 查看答案

What an unforgettable experience!I"ll write it down________it is still fresh in my memory. [    ]
A. since
B. while
C. after
D. until

题型：福建省同步题难度：| 查看答案

I had just stepped out of the bathroom and was busy drying myself with a towel ________ I heard
the steps. [     ]
A. while
B. when
C. since
D. after

题型：山西省同步题难度：| 查看答案

Father together with his good friends was________to go out for a camp________it began to rain. [ ]
A. hardly; than
B. around; as
C. about; when
D. nearly; while

题型：山西省同步题难度：| 查看答案

I had just stepped out of the bathroom and was busy drying myself with a towel ________ I heard the
steps. [      ]
A. while
B. when
C. since
D. after

题型：陕西省同步题难度：| 查看答案