题目内容
Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.
| A.when | B.while | C.so | D.for |
A
考查连词。be about to … when …正要做……突然……句意:Mike刚吃完午饭正要休息的时候,突然一名不速之客来临,选A。
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