—We usually go hiking for vacation. I like it, but I want to try something more challenging this year.
—_____
| A．Cheer up! | B．Like what? | C．Take care. | D．Let’s go. |
He was told that it would be at least three more months______he could recover and return to work.
| A．when | B．before |
| C．since | D．that |
—What do you think of the performance today?
—Great!____but a musical genius could perform so successfully.
| A．All | B．None |
| C．Anybody | D．Everybody |
—Where is my dictionary?I remember I put it here yesterday.
—You___it in the wrong place.
| A．must put | B．should have put |
| C．might put | D．might have put |
Many people have come to realize that they should go on___balanced diet and make___room in their day for exercise.
| A．a;/ | B．the;a |
| C．the;the | D．/;a |
A survey of the opinions of experts___that three hours of outdoor exercise a week___good for one’s health.
| A．show;are | B．shows;is |
| C．show;is | D．shows;are |