—Tom, you are smoking again?
—______? It’s none of your business.
| A．So what | B．How come | C．Why not | D．What for |
They haven’t made known where they are to hold the conference.
| A．this | B．that | C．it | D．one |
— Jenny took the 8:00 bus to Guangzhou this morning.
— Really? He the 9:00 train. It's much more comfortable and safer to travel by train.
| A．could have taken | B．should take | C．must have taken | D．can take |
If you want to be a successful leader, you need to your confidence first.
| A．add up | B．get up | C．build up | D．make up |
Some of the wheat is from Canada. What about ?
| A．another | B．the other | C．others | D．the rest |
Safety in school has been of great concern because of frequent reports about
accidents students got injured or killed while in school. .
| A．in which | B．for which | C．which | D．when |