. —Why do you look worried?
—There are so many problems______.
| A．remaining to settle | B．remained settling |
| C．remaining to be settled | D．remained to be settled |
The driver shall be fined if he drives without a(n)________．
| A．permission |
| B．permit |
| C．allowance |
| D．admittance |
I'll come to pay a visit to you if ________ this weekend.
| A．you're convenient |
| B．it is convenient for you |
| C．you feel convenient |
| D．it is convenient with you |
Tom should not be sent to carry out the task________，he hasn't had enough experience.
| A．for a start |
| B．by the way |
| C．on the other hand |
| D．sooner or later |
Earth Day is celebration of life and our planet. It is a reminder that we need to ________the world we live in and that we should learn to respect life and nature.
| A．care about |
| B．think of |
| C．refer to |
| D．watch out |
After many attempts，she ________managed to get promotion.
| A．immediately |
| B．suddenly |
| C．naturally |
| D．eventually |