---What’s ______population of China?
---China has_____ population of 1.3 billion.
| A．a； the | B．the； a | C．/；/ | D．the； the |
It is already 10 o’clock. I wonder how it ______ that she was two hours later on such a short trip.
| A．came over | B．came out | C．came about | D．came up |
--Why does the lake smell terrible?
---Because large quantities of water ______.
| A．have polluted | B．is being polluted |
| C．has been polluted | D．have been polluted |
—Miss Wang，I feel very nervous with the competition approaching.
—________. As long as you can finish it，it is a victory.
| A．Take your time | B．Take it easy | C．No problem | D．It’s hard to say |
Since our country has so many good table tennis players, we have to ______ the best ones to take part in the game.
| A．rely on | B．depend on | C．judge on | D．decide on |
— What has Jack been doing recently?
—I don’t know _____ care.
| A．nor I do | B．nor do I | C．nor am I | D．nor I am |