[ Grammar ]
You _________ ask your manager for persmission to leave work early. It’s good manners.
A. should
B. shouldn’t
C. shall
D. shall not

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Grammar › ViewI ______ the accident while I______ for the bus.
A. was seeing / waited
B. saw / was waiting
C. was seeing / was waiting
D. saw / waited
Grammar › View
Are you coming to……party next Saturday?
A. a
B. an
C. the
D. X