Use your head, _______ you’ll work out the problem.
A. so B. or C. for D. and
_______ is known to all, Lu Xun was famous as a great thinker.
A. Which B. As C. It D. What
I would appreciate back this afternoon.
A. you to call B. you call C. your calling D. you’re calling
If something ________, it becomes less and less and eventually disappears completely.
A. dies off B. breaks off C. dies out D. breaks out
It’s the first time ______ he has helped us.
A. that B. before C. when D. who
Here are two pairs of shoes, ______ you may choose.
A. both of them B. either of them C. any of which D. either of which
