--- The fog is so thick that the express way ____ have been closed.
--- You are right. I ____ have thought of that. Now we have to take another road.
| A．can; should | B．may; can | C．should; must | D．must; should |
The melon the Smiths served at dinner would have tastedif it had been put in the fridge for a little while.
| A． | good | B． | better |
| C． | best | D． | well |
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 |