单项选择题

An iron and steel works, with several satellite factories,（）in that city now.

A. is built
B. is being built
C. were built
D. are being built

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单项选择题
He（）in the army for ten years, and he retired last year.

A. has served
B. had served
C. served
D. had been serving
单项选择题
Thus（）between England and France which was to last for 100 years.

A. broke out a war
B. did a war break out
C. a war broke out
D. was a war broken
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