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A. Calling B. Call C. Called D. To call

【題目】The soldiers fought of their country's safety.
A.in advance
B.in need
C.in defense
D.in support

A. could B. should C. might D. would

A. tried B. have tried C. had tried D. have been trying

A. scenery B. scene C. spot D. position

A. across B. through C. at D. in

A. are dropped B. drop

C. are being dropped D. have dropped

【題目】 to smart phones just before bed, as a research says recently, can lead to poor night's sleep.
A.Being exposed
B.Exposed
C.Having exposed
D.To expose

A. why B. how C. whether D. where

【題目】It was of our boss to care so much about our feelings, as a result of which many of my co-workers decided to stay when our company was at risk.
A.modest
B.particular
C.strict
D.considerate