— Is there any possible way to help the children get rid of such a bad habit?— T
题型：不详难度：来源：
— Is there any possible way to help the children get rid of such a bad habit?
— To be honest, it’s very hard, but we ______on this problem.| A．work | B．worked | C．are working | D．were working |
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答案
| C |
解析
| 考查时态，句意：有什么可能的方法帮助孩子们摆脱这种坏习惯吗？说实话，非常困难，但是我们正在从事这个问题。根据语境从事这个问题，指的是现阶段进行的动过，所以用现在进行时态，故选C。 |
举一反三
“We ______ other possibilities too, such as murder. We ______ until we find convincing evidence.”said Detective Sam Peterson.
A. had looked at; wouldn’t give up B have looked at; don’t give up
C have considered; haven’t given up D. have been looking at; won’t give up |
Experts suggest that teenagers spend at least 30 minutes exercising, five times a week. Walking and riding your bike _____ , and ______.| A．counts; so are school sports | B．count; school sports count, either | | C．count; so do school sports | D．counts; so school sports do |
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Explorer Robert Ballard searched the sunken ship---the Titanic for more than 20 years and also, with his cameras, he _____ the hole along the side of the ship which had caused it to fill with water and sink.| A．could find | B．managed finding | | C．succeeded to find | D．was able to find |
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Mother blamed the dog for breaking the glass, but in fact I _____.| A．was to be blamed | B．is to be blamed | C．was to blame | D．is to blame |
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When the fans hurried to the airport, they found that the famous singer _____.| A．had left | B．has left | C．left | D．will leave |
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