题目内容

They haven't formally ___________ their engagement yet.

A. announce
B. announced
C. announcing
D. been announced

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They ____________ that the flight would be delayed.

A. announced
B. announcing
C. announces
D. are announced

The _________ of gases such as carbon dioxide should be stabilised at their present level...

A. emission
B. emissions
C. many emission
D. many emissions

A new town has grown up in this ___________ district.

A. industrially
B. industry
C. industrial
D. industries

Children should not be allowed to watch ________ movies.

A. violent
B. violently
C. violence
D. more violent