During World War II Malta managed to _____ most of Italian and German bombers by throwing up an effective anti-aircraft screen.
| A．put out | B．shut out | C．come across | D．get across |
— Alice came back home the day before yesterday.
— Really? Where ______?
| A．has she been | B．had she been |
| C．has she gone | D．had she gone |
—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 |