— I’ve written to them twice to tell them the problem, but there’s no __at all.
— Maybe they didn’t get your letters.
| A．reply | B．call |
| C．information | D．news |
He found the key _____the door.
A.of B.to C.for
We all felt _____after we knew the _____news.
A.exciting, exciting B.excited, exciting C.exciting, excited
John didn’t go to bed ______he finished his homework.
A.until B.after C.while
It took him half an hour _____ the work.
A.doingB.to do C.did
The teachers are very friendly ______their students.
A.to B.at C.on