I was just about to go to bed last night ______ the telephone rang.
| A．while | B．when | C．as | D．before |
.It is uncertain whether the medicine will work on the this cold, _________？
A. won't it B. isn't it C, will it D. is it
.It is definite that new digital mobile phones have less radiation, but that does not______mean
that they should be used without caution.
| A．eventually | B．necessarily | C．generally | D．obviously |
.____________the advantages against the disadvantages, I decided to take up the job as a clerk in the bank.
| A．Having weighed | B．Weighing | C．Weighed | D．To weigh |
The previous lecture focused on the reading problems in new words, while this lecture will turn to___________in complex sentence structures.
| A．ones | B．one | C．those | D．that |
Being exposed for a long time_____strong sunlight might seriously damage your skin.
| A．over | B．under | C．to | D．in |