With so much work on hand, you _____ to see the game last night.
| A．mustn’t go | B．shouldn’t go |
| C．couldn’t have gone | D．shouldn’t have gone |
Can you tell the___difference between the words”require”and “request”?I sometimes get puzzled by their meanings
| A．dramatic |
| B．regional |
| C．apparent |
| D．subtle |
“Perhaps we need to send for Dr.Smith to see what we can do about it,”Father suggested___to his neighbor who had come to discuss the problem
| A．tentatively |
| B．thoughtlessly |
| C．definitely |
| D．rudely |
The research lacks ___evidence,and therefore,its conclusions are doubtful
| A．solid |
| B．fierce |
| C．severe |
| D．potential |
We used to see each other___,but I haven’t heard from him since last year
| A．especially |
| B．regularly |
| C．particularly |
| D．approximately |
Bicycling is good exercise;___,it does not pollute the air
| A．nevertheless |
| B．besides |
| C．otherwise |
| D．therefore |