30.—Did the winner of the English Contest behave well?—Really. She made a deep ________ on the judges.
Many people agree that ________ knowledge of English is a must in ________ international trade today.
In the market,vegetables are sold by ________ kilogram,I mean,by ________ weight.
—John has put forward ________ most challenging question for us to answer.—Yes,it really is.I have never heard ________ harder one.
The education of ________ young is always ________ hot and serious topic.
As ________ unemployment is very high at the moment,it's very difficult for people to find ________ work.