The thief was noticed _____the office building by the back door on the screen.
A. enter B. enter into
C. to enter D. to enter into
These cabbages ______ well because they _____nice.
A. look, sell B. sell, are looked
C. sell, look D. are sold, look
— When will you come to Daqing?
— I will call you _____I arrive.
A. till B. while
C. as quickly as D. as soon as
Tom did all _____he could to get on well _____his classmates.
A. which; with B. that; / C. that; with D. /; /
— Hurry up, _____you will miss the school bus.
— I know that, Mum. I'll be ready in a minute.
A. or B. and C. nor D. but
— Congratulations! You've got the first prize in the English Contest.
—_____ it be true? It's unbelievable!
A. May B. Should C. Must D. Can
