题目内容
All possible means ____ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．has been used | C．are use | D．have been used |
D
解析试题分析：句意：所有可能能阻止大气污染的方法都试过了 ，但是空气依然不干净。means单复数同形，在这里是复数,这里强调过去的动作的影响所以用现在完成时更好。故选D。
考点: 考查动词时态的用法。
津桥教育计算小状元系列答案It is said that a reliable treatment for the disease will be applied at least two or three months away and still it ______on animals.
| A．is testing | B．has tested | C．is being tested | D．has been tested |
-- Dear me! I _____ you at first sight! But you do have changed a lot!
-- Nor _____ I! You are no longer the Fat Girl!
| A．haven’t recognized; have | B．hadn’t recognized; had |
| C．don’t recognize; do | D．didn’t recognize; did |
Since Jack was laid off from his job three months ago, he a new one, but without luck.
| A．1ooked for | B．had looked for | C．is looking for | D．has been loking for |
Put on your coat！I______ you down to the doctor.
| A．take | B．took | C．have taken | D．am taking |
My friend, Tom had just lost his job when, at the precise moment, his girlfriend ______ up with him. She was rubbing salt into his wound.
| A．breaks | B．has broken | C．had broken | D．broke |
— Hi，Michelle， I can’t find my e-dictionary.
— Sorry，I it. I guess I put it on the top shelf with my things.
| A．had used | B．used | C．was using | D．am using |
—It’s time that I ____ on night duty. I must be off now.
—I’d rather you ____ at home on such a family reunion night.
| A．am, stay | B．was, stayed |
| C．will be, to stay | D．be, will stay |
It was reported that an agreement ____ between the two companies and that they would carry out a project together.
| A．reached | B．had been reached |
| C．was reached | D．has been reached |