We believe ________ we can find out the wonder drugs to H7N9 bird flu.
| A．when | B．whether | C．what | D．that |
He didn’t make __________ clear when and where the meeting would be held.
| A．this | B．that | C．it | D．these |
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 |
Only in this way will you get your valuable ideas __________ ; or your time will be wasted.
| A．over | B．across | C．away | D．down |
The young teacher always has a lot of methods to make her lessons lively and interesting, _______ all her students.
A. agreeing to B. turning to C. seeing to D appealing to
---- Someone might see us.
-----___________? We are not doing anything illegal.
| A．What’s up | B．What if | C．How come | D．So what |