单项选择题

While he （） the flowers it began to rain. He put up his umbrella and went on waiting.

A.watering
B.was watering
C.watered
D.had watered

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单项选择题
I shall （） entirely （） what my solicitor says.

A.go after
B.go about
C.go by
D.go off
单项选择题
I got a letter from Canada this morning, （） that they're expecting another day.

A.saying
B.writing
C.telling
D.speaking
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