4/ Look at those clouds! There's a storm _______. A. threat B. threaten C. threatening D. threateningly 5/ It was a long and _______ battle and many men were killed. A. blood B. bloody C. bleed D. bleeding 6/ I hope they'll have the good _______ to shut the windows before they leave. A. sense B. sensitive C. sensible D. senseless 7/ The story is set in an _______ world. A. image B. imagine C. imaginative D. imaginary 8/ The program traced the _______ of popular music through the ages. A. develop B. developed C. developing D. development 9/ The firm produces kits for amateur car _______. A. construct B. constructors C. constructive D. construction 10/ Most zoos try to exhibit animals in _______ settings. A. nature B. natural C. naturalize D. naturalistic 12/ The nationalists are very keen to _______ their customs and language. A. interest B. value C. conserve D. cost 13/ The bush looked badly _______, with black marks on all the leaves. A. ill B. sick C. endangered D. diseased 14/ I sometimes think I'd be happier teaching in Spain. Oh well, the _______ is always greener on the other side! A. grass B. plant C. tree D. bush 15/ The article was about the different _______ of Spanish spoken in South America. A. varieties B. differences C. changes D. types

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