So far, almost every possible means ______to provide accommodation and medical rescue for the people in the flood-stricken area.
| A．were tried | B．was tried |
| C．have been tried | D．has been tried |
Dogs have a very good ___________ of smell and are often used to search for survivors in an earthquake.
| A．sense | B．view | C．means | D．idea |
— Someone might see us.
— ___________? We are not doing anything illegal.
| A．What’s up | B．What if | C．How come | D．So what |
— What do you expect your son to succeed in?
— _________ the entrance exam.
| A．To pass | B．Passing | C．Get past | D．Past |
— I think the waiter has forgotten us. We ________ here for over half an hour!
— I think you’re right. He probably thinks we have already ordered.
| A．are waiting | B．have been waiting | C．have waited | D．will wait |
Catherine, ____ the alarm clock for 6 o’clock, or you would oversleep and be late for the train.
| A．setting | B．sets | C．set | D．to set |