单项选择题
Time is money! We should（）our time.
A.be fit for B.make good use of C.play a part of D.take the place of
单项选择题 She has lived here（）three years.
单项选择题 She's unlucky, and she's always suffering（） luck one after another
单项选择题 On his first sea（）he was still quite young but showed great courage to face the storm.
