— I have got a backache.
— That’s not surprising. You ______ in front of that computer too long.
| A．work | B．worked | C．have been working | D．are working |
We sincerely look forward to ______ you as a judge in our English speech contest to be held next Wednesday. Please do contact us if you have any questions.
| A．welcoming |
| B．welcome |
| C．have welcomed |
| D．be welcoming |
As a child,you had no reason to shout at your parents, ______the excuse might haven．
| A．however |
| B．whatever |
| C．whichever |
| D．whenever |
The price of houses in that city has reached an unbelievable level, but six years ago no one could have expected that they ______ so sharply,
| A．rose |
| B．had risen |
| C．were rising |
| D．were to rise |
According to the results of a new study, the act of hearing is a group effort for the human body’s organs, ______the ears, the eyes and also the skin.
| A．to involve |
| B．involved |
| C．involving |
| D．involves |
In order to ______ citizens’ rights and guarantee that they can live safely in a free society,it is necessary to establish laws.
| A．prevent |
| B．preserve |
| C．promote |
| D．present |