从每题所给的a、b、c、d四个选项中，选出可以填入空白处的最佳选项。 21. recognized as ________ world cultural heritage by the united nations in 2002, paper cutting is ________ practice which originated in ancient china. a. the; a b. a; a c. the; the d. a; the 22. —what should i wear for the party? —it’s an informal one; it doesn’t matter ____ you’re dressed. a. what b. when c. how d. whether 23. —are there any tickets left? —sorry. there are ________, if ________. a. few; any b. a few; some c. some; few d. a little; some 24. _____ want to devote their whole life to their career should go _____ there are various career opportunities.
