― There ________ a basketball match between Class Three and our class in ten minutes. ― Great. Let’s go and cheer (欢呼) for them.

(2013·东北四市一模)After visiting Harbin, most of the foreign friends said they would never forget the time ________ they had spent.

Mr. Smith has ____ daughter who has won two national painting prizes.

Now one of the most serious problems many people are worried about _____ on the lack of adequate housing space.

Students should learn how________problems.