I thought the actor was famous, ______ none of my friends has ever heard of him.
| A．and | B．or |
| C．so | D．but |
—Mr. Ma has gone to Guangzhou on business.
—Really? Do you know ?
| A．who did he go with |
| B．when he came back |
| C．how soon will he be back |
| D．whether he went there by train |
---Why did you buy one more tie？you have got more than ten ties,
---A man can never have _____ many ties.
| A．enough | B．too | C．so | D．such |
I think that “Duang” must be one of the words on the Internet this year.
| A．deepest | B．widest |
| C．hottest | D．highest |
_____ you can understand how the human body woks, you need to have some knowledge of chemistry
| A．As soon as | B．Though | C．So that | D．Since |
---I hear the government is going to ___ the air quality with the new standard PM2.5，isn’t it？
---Yes, ___ the air pollution will get more serious.
| A．discover, therefore | B．revise, anyway |
| C．review, however | D．test, otherwise |