---Sam becomes the top student because he is very clever.
---_______. Without the help of his hardworking teachers, he can’t make it at all.
| A．I don’t think so. | B．I’m afraid so. |
| C．I agree with you. | D．I don’t know. |
The presidents of China and the USA had ________ interview a short time ago.
—And it was ________ great success.
| A．an; / | B．the; a | C．an; a | D．the; / |
The children are having fun ________ on the playground.
| A．to play | B．play | C．playing | D．played |
We are supposed to ___________a solution to stop people from looking down at their mobile phones while driving cars.
| A．come up with | B．come from |
| C．come out | D．come true |
.I was supposed ___ at 7:00 ,but I arrived at 8:00.
| A．arrive | B．to arrive | C．arrives | D．arriving |
This kind of skirt looks ___ and sells _____.
| A．nice well | B．nice; good | C．well; well | D．good nice |