11. We are aware of the potential problems.

　　A.global

　　B. possible

　　C.ongoing

　　D. central

　　答案為B. poten

　　ntial(可能的)-possible(可能的)

　　12. The idea was quite brilliant.

　　A.positive

　　B. clever

　　C.key

　　D. original

　　答案為B. brilliant(絕妙的)– clever (聰明的)

　　13. Stock market price tumbledafter rumor of a rise in interest rate.

　　A.regulated

　　B. increased

　　C. fell

　　D.maintained

　　答案為C. tumbled(暴跌) –fell(下降)

　　14. The course gives you basic instructionsin car maintenance.

　　A. coaching

　　B. idea

　　C.term

　　D. aspect

　　答案為A. instructions (指導(dǎo)說(shuō)明)—coaching(教導(dǎo))

　　15. All houses within 100 metres of theseas at risk of flooding.

　　A. in danger

　　B. out of control

　　C.between equals

　　D. in particular

　　答案為A in danger of (處于危險(xiǎn)中)— at risk of (處于風(fēng)險(xiǎn)中)