My teacher asked me to copy _____ article _____ second time．
| A．an; the | B．an; a | C．the; a | D．the; the |
David, you _____play with the valuable bottle; you_______ break it.
| A．won’t; can’t | B．mustn’t; may |
| C．shouldn’t; must | D．can’t; shouldn’t |
Zhangqiang is said ______ the experiment in the lab, but I can’t find him there.
| A．to have done | B．to do | C．to be doing | D．doing |
I’ll go to meet you if I ________ free then.
| A．will be | B．would be | C．am | D．Was |
Jane helped me with my work last week when I asked for leave. ______, I’ll invite her to have dinner with me.
| A．In return | B．In turn | C．In time | D．In vain |
Mo Yan has published dozens of novels, of _____some are very popular among Chinese readers, Red Sorghum, for example.
| A．those | B．whose | C．whom | D．Which |