Doing your homework is a sure way to improve yor test scores, and this is especially true ____ it comes to classroom tests.
| A．before | B．since | C．when | D．after |
Please keep me _____ what happens.
| A．informing by | B．informing of | C．informed of | D．informed by |
______ the chairman of the council, the vice chairman does duty for him.
| A．Absent from | B．In the absence of | C．Present from | D．In the presence of |
In the competition to be held, a gold medal, together with a certain sum of money, _____ the champion.
will be given to who will win B. will be given to whoever will become
has been given to whoever wins D. was given to anyone who became
You can only be sure of _____ you have at present; you cannot be sure of something _____ you might get in the future.
| A．that; what | B．what; / | C．which; that | D．/; that |
The traditional view is _____ we sleep because our brain is “programmed” to make us do so.
| A．when | B．why | C．whether | D．that |