7.We have sometimes accidents on this line, but no accidents have been occurred since last winter.去掉been
8.When it was my turn, I felt so shy that I don't dare to say anything before the class. don't→didn't
9.(2016·哈尔滨模拟)Last summer I went to London for a holiday.I spend just a week there.spend→spent
10.Yesterday I suspected of stealing something, which made me feel extremely terrible.suspected前加was
Ⅲ.语法填空
(2016·河北省七校联考)What do people do with their old, out of date but still useful computers? Most people don't know
1.what
to do with them. Many old computers are put away in homes. Many more
2.are_thrown
(throw) away as rubbish.
Finally, some companies are thinking of ways to bring down the number of old computers. Sony 3.has_agreed (agree)to help recycle old Sony products. Dell, Hewlett Packard and other
4.companies
(company) now also take back some old computers.
In some countries, laws have been passed, too. Computer companies have to pay for collecting and
5.recycling
(recycle) their used products. And 70% of computer waste must be recycled. The idea behind the laws
6.is
(be) that computer companies themselves should pay for the cost. That
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