Chang’e-3 made China become the third nation _____ an unmanned spacecraft on the moon.
| A．sends | B．to send |
| C．sent | D．sending |
---We need a person very much to think up a creative idea.
--- ______ the new manager have a try?
| A．Shall | B．Must | C．Should | D．Need |
The young man, who by then ___ admission to Peking University, determined to do some part-time jobs to gain more practical skills.
| A．gained | B．was gaining |
| C．has gained | D．had gained |
---What do you think of the furniture on exhibition?
--- Well, great! But I don’t think much of ____ you bought.
| A．the one | B．it | C．that | D．which |
To improve the quality of our products, we asked for suggestions _____ had used the products.
| A．who | B．whoever |
| C．which | D．whichever |
---Why don’t you turn to Professor Lee for some advice?
--- _____. What if he refuses to help or something?
| A．It depends. | B．Can’t agree more. |
| C．Don’t mention it! | D．I don’t know. |