—What ______ in your school in the past few years?
—A new library and a playground were built last year.
| A．happens | B．happened |
| C．has happened | D．had happened |
Remember ______ the book in time when you have finished _____ it .
| A．to return…reading | B．returning…reading |
| C．returning…to read | D．to return…to read |
It willabout half an hour to get to the zoo by bus.
| A．spend | B．take | C．pay | D．cost |
Tom, together with his parents the yard when I saw him.
| A．is cleaning | B．was cleaning |
| C．are cleaning | D．were cleaning |
---What are you going to do this afternoon?
---I’m not sure. I go swimming with my friend.
| A．may | B．can |
| C．may be | D．must |
Hi, Kate. What made youthe sad news again?
| A．think of | B．think about |
| C．think over | D．think out |