题目内容

keep up _____ (跟上;保持同步)

A. to
B. about
C. with
D. on

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stand _____ (出色;显眼;突出)

A. up
B. over
C. at
D. out

ring _____ (发出响亮的声音)

A. off
B. at
C. out
D. over

shield sb/sth _____ sb/sth (使......免受)

A. from
B. about
C. in
D. over

_____ (good/a good) grace (有风度地;情愿地)

A. at
B. in
C. with
D. about

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