When a new disease breaks out, experts must ________ what to do in the fastest way.
| A．figure out | B．take out |
| C．point out | D．make out |
Tom is said the violin. Don’t wait for him. Let’s begin.
| A．to play |
| B．to have played |
| C．to be playing |
| D．to be played |
The lawyer tried to convince the jury his client’s innocence.
| A．for |
| B．on |
| C．about |
| D．of |
The train was to arrive at 11. 30, but it was an hour late.
| A．about |
| B．due |
| C．certain |
| D．likely |
–---Where does Mr. Smith live?
------He has been in London he end of the war.
A by
B. at
C. in
D. since
-----Did you find the missing couple in the mountain yesterday?
-------No, but we _ to get in touch with them ever since.
A have tried
B. had tried
C. have been trying
D. had been trying