–Mum, hurry up! The film is beginning soon.
- Just . We have at least one hour to spare.
| A．stay away | B．take your time |
| C．don’t mention it | D．forget it |
.Don’t stop______you meet with a word you don’t understand.
| A．at that time | B．each time |
| C．sometimes | D．when every time |
Don’t be afraid of asking for help ______it is needed.
| A．unless | B．since | C．although | D．when |
He made a mistake, but then he corrected the situation ______it got worse.
| A．until | B．when | C．before | D．as |
The thought ______he might be a scientist some day encouraged him to study hard.
| A．whether | B．that | C．how | D．why |
There is a new problem involved in the popularity of private cars ______road conditions need______.
| A．that; to be improved | B．which; to be improved |
| C．where; improving | D．when; improving |