if these trousers are too big ,buy a smaller ___ A.one B.copy C.them D.pair_

问题描述:

if these trousers are too big ,buy a smaller ___ A.one B.copy C.them D.pair_
选择 A 还是 D B.C 请指教 衷心谢谢你们

D
a pair of trousers
trousers是复数,肯定不能直接用a