【单选题】
It is very important for a sailor to （）a safety patrol.
A、has
B、had
C、have
D、having
查看正确答案A、operate B、steer C、repair D、adjust
搜题
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第5题
A、it plays a watchdog function,keeping an eye on the government B、it informs people of current affairs in the world. C、it provides people with subjective reports. D、it publishes short pamphlets for Parliament.
