The doctor told me to take the medicine_____.
| A．every fourth hours | B．each fourth hour |
| C．each four hours | D．every four hours |
.
What you said just now ________ me of my happy childhood.
| A．mentioned | B．warned | C．persuaded | D．reminded |
.
Many people have come to realize they should go on ________ diet and make room for ________ exercise.
| A．a; 不填 | B．the; an | C．the; the | D．不填; an |
.
---- My watch is out of order.
---- Then why don’t you have ____?
| A．repaired it | B．to repair it | C．it repaired | D．it to be repaired |
.
The cloud never hides the sun. The truth will be known to all _______.
| A．on time | B．in time | C．by time | D．from time to time |
.
____ no doubt _____ China will become an advanced country in the future.
| A．It; whether | B．There is ; that | C．It is ; that | D．There is; whether |