_____ more than 100 million references to the word“tuhao” on social media since early September．
| A．It has been | B．There is | C．There have been | D．They are |
The reason ________ he refused to attend the meeting was that they didn’t give him an invitation earlier.
| A．how | B．which | C．why | D．because |
Our English teacher requested that the homework ________ tomorrow morning.
| A．would be handed in | B．be handed in |
| C．hand in | D．must be handed in |
Smoking, which may be ________ fun for some people, is ________ cause of discomfort for the people around him.
| A．/; a | B．a; a | C．a; / | D．a; the |
— I was worried about math, but Mr. Brown gave me an A!
— ________ That’s a difficult course.
| A．Have a good luck. | B．Not really. |
| C．Congratulations! | D．You do? |
—It’s a shame to ask you to lend me more money, but…
一________You really need money to keep on with your education.
| A．Forget it | B．Don’t be silly | C．Don’t mention it | D．No way |