A.available | B.useful | C.convenient | D.affordable |
A. adaptable | B. acceptable |
C. advisable | D. available |
A. enough | B. suffered |
C. none | D. little |
A.special | B.regional | C.optional | D.original[ |
A.normal | B.general | C.common | D.regular |
A.silent | B.quiet | C.calm | D.secret |
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