Look! That’s Mark. He has been teaching ________ English for two years.
A. our B. us C. we
It is a pity that we have to __________ the school trip because of the rainy days.
A. set off B. go off C. put off
--- Why is Jerry studying so hard these days?
--- __________ a better high school.
A. Entering B. To enter C. Enter
Mr. Green will arrive here and give us a speech _____ the morning of April 22nd.
A. in B. on C. at
.--- Have you finished your work?
---Not yet, but I _________ them in half an hour.
A. will finish B. have finished C. Finished
--- Does your father go to work by _____ car every day?
--- No, he sometimes takes _____ bus.
A. a; the B. the; a C. /; a
