He left his hometown, _____ never to come back again.
| A．was determined | B．being determined | C．determined | D．and determined |
—We ______ that you would fix the TV set this week.
—I’m sorry. I ______ to fix it this week, but I’ve been too busy.
| A．had expected; had intended | B．are expecting; had intended |
| C．expect; intend | D．expected; intend |
______time went on, the people in the area came to realize how serious the environment had been polluted.
| A．As | B．With | C．When | D．While |
I didn’t manage to do it______you explained how.
| A．until | B．unless | C．when | D．before |
.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 |