It seems water___from the ceiling for some time . We’ll have to climb to the roof with a ladder.
| A．leaked | B．is leaking | C．leaks | D．has been leaking |
Faced with the hard financial ____________, all the countries in the world should learn to cooperate to get it over.
| A．situation | B．position | C．phenomenon | D．state |
Would you take my old TV in _______ for this camera?
| A．place | B．return | C．exchange | D．business |
The research showed beyond ________ that smoking contributes to heart diseases.
| A．wonder | B．doubt | C．problem | D．use |
______ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.
| A．Although | B．As long as | C．If only | D．As soon as |
Either you or one of your students ______ to attend the meeting that is due tomorrow.
| A．are | B．is | C．have | D．be |