题目内容

There is absolute dead _________ for a long moment.

A. silent
B. silence

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The previously __________ objects have now been identified as being satellites.

A. unidentified
B. unidentifying

There are no enemy missiles ___________.

A. approach
B. approaching

The state of emergency has officially been _________. We are in no danger.

A. called on
B. called off

We were so , so __.

A. scare...confusing
B. scared...confusing
C. scared....confused