After 15 years in the USA, he finally decided to ________ American citizenship.
| A．concentrate on | B．apply for |
| C．put off | D．lead to |
Due to the traffic jam, thousands of passengers remainedon the freeway.
| A．stuck | B．sticking |
| C．to be sticking | D．to have stuck |
It was the soldier did at the spot of the accident, not what he said,
moved all the citizens of the whole city.
| A．that; what | B．what; that |
| C．that; that | D．what; which |
I was so familiar with him that I recognized his voice I pick up the phone.
| A．while | B．after | C．in case | D．the instant |
---How often do you call your parents?
---,but usually once a week.
| A．Forget it | B．Once in a while |
| C．It depends | D．I’ve no idea |
Though computers can do a lot of work man can’t do, they can’t completely _______ human beings.
| A．replace with | B．in place |
| C．take place | D．take the place of |