Mary _______as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
| A．has served | B．had served |
| C．is serving | D．served |
You’d better go there by train. The train ticket is ________ the plane ticket.
| A．as cheap three times as |
| B．as three times cheap as |
| C．three times cheaper than |
| D．cheaper three times than |
On AIDS Day, President Hu Jintao demanded that the problems _________ paid special attention to.
| A．referred to being | B．referred to be |
| C．refer to being | D．refer to be |
Could it be in the classroom_____ we had a talk last night _____you left your keys?
| A．that; where | B．in which; where |
| C．where; that | D．where; in which |
Living in the dormitory means_________ to take care of yourself, understand each others’ differences and share________ interests.
| A．to learn; common | B．learning; ordinary |
| C．to learn; ordinary | D．learning; common |
I was _______ at the letter, which was________ to my classmates.
| A．amaze; amazing | B．amazing; amazed |
| C．amazed; amazing | D．amaze; amaze |