All of the guests by 9 o’clock , but the host until 15 minutes later .
| A．arrived ; didn’t turn up | B．had arrived ; didn’t turn up |
| C．arrived ; hadn’t turned up | D．had arrived; hadn’t turned up |
Only by _______ your attention _______ what you are learning can you learn it well.
| A．concentrate; on | B．pay; on | C．concentrating; on | D．paying; on |
—Do you mind if I smoke here?
— ___________.
| A．No, please don’t | B．I’d rather you didn’t |
| C．I don’t want you to | D．I’m afraid you don’t |
It’s not _________ good idea to drive for four hours without _______ break.
| A．a; a | B．the;a | C．the;the | D．a;the |
---How about putting some pictures into the report?
---________ A picture is worth a thousand words.
| A．I don’t think so. | B．Why not? | C．Thank you. | D．It doesn’t matter. |
One minute she burst into ________ and the next burst out ________. We just couldn’t catch her mood at any moment.
| A．crying; laughter | B．tears; laughter | C．tears; laughing | D．crying; laughing |