24.You 'll find the map of great ___________(价值) when traveling in the city.

23.You can find sth. ______(价值) in the __________(山谷) around.

22.The Blacks are on ____________(度假).

21.He traded the ________(用过的) cars for sth. _____(有用).

20.The boat is on the beach, bottom __________(朝上).

19.---Where is mum?--- She is __________(楼上).

18.As _______(平常), he went to school by bike, but on the way he found something _____(不寻常).

17.You'll fail ______(如果不,除非) you really put your hears and soul into it.

16.____________(不知道) to the people present, he felt a bit nervous.

15. We all dream of being admitted into famous __________(大学).