Most products, ____ which this is one example, sell well, _______.
| A．of; as advertised | B．of; like advertising |
| C．/; as an ad | D．/; like an ad |
The old scientist took up walking as a regular form of exercise, which, of course, is of great to his heath.
| A．benefit | B．favor |
| C．sense | D．relationship |
—I can never forget the days we spent together in the summer camp.
—Well, especially the day it suddenly began to rain in the middle of the night.
| A．when; when | B．which; when |
| C．what; that | D．on which; when |
At no time the rules of the game. It was unfair to punish them.
| A．they actually broke | B．do they actually break |
| C．did they actually break | D．they had actually broken |
We made it possible the task would be finished ahead of time within three weeks.
| A．what | B．that | C．which | D．how |
No student go out of school for snacks during the break without the teacher’s permission.
| A．will | B．must | C．shall | D．may |