21. Does everyone on earth have an equal right ________ an equal share of its resources?

A) by B) at C) to D) over

22. In 1914， an apparently insignificant event in a remote part of Eastern Europe ________ Europe into a great war.

A) inserted B) imposed C) pitched D) plunged

23. The British are not so familiar with different cultures and other ways of doing things， ________ is often the case in other countries.

A) as B) what C) so D) that

24. We had to ________ a lot of noise when the children were at home.

A) go in for B) hold on to C) put up with D) keep pace with

25. What he said just now had little to do with the question ________ discussion.

A) on B) in C) under D) at

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