stponing b.was postponed
c.had been postponed d.was being postponed
4.years ago we didn’t know this,but recent science ________ that women who drink more than two cups of coffee every day are more likely to have heart disease than those who don’t.
a.showed b.has shown c.will show d.is showing
5.it’s reported that by the end of this year the output of cars of the factory ________ by about 20%.资源难易程度:★★★★★★★★★★★★★★★
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