7.A lot of people could fall ill after drinking contaminated water.
A.muddled
B.polluted
C.mixed
D.troubled
8.The room is dim and quiet.
A.tiny
B.pleasant
C.dark
D.a(chǎn)greeable
參考答案:7. B 8. C
A.muddled
B.polluted
C.mixed
D.troubled
8.The room is dim and quiet.
A.tiny
B.pleasant
C.dark
D.a(chǎn)greeable
參考答案:7. B 8. C