They were lost at the sea and were the wind and the bad weather.
A. at the risk of
B. at the cost of
C. at the end of
D. at the mercy of
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________ the north of the city,most of the miners were rescued from the coal mines.
A. In
B. On
C. At
D. To
Ladies and gentlemen,please switch _______ your mobile phones!The plane is taking off.
A. over
B. on
C. to
D. off
Many of us are from the south, , Li Lei is from Guangdong.
A. such as
B. such like
C. for example
D. that’s to say
I would like a job which pays more,but I enjoy the work I am doing at the moment.
A. in other words
B. on the other hand
C. for one thing
D. as a matter of fact