a pair of trousers 后应该用try it on还是try them on

a pair of trousers 后应该用try it on还是try them on this pair of trousers is cheap enough.can i try them/it on? This is a pair of shoes .can i try ____ on 是填it 还是 them I want this pair of pants.Can I ( ) A.try it on B.try them o 1.This pair of trousers is very nice .Can I A.try it on B.tr I prefer the blue trousers.May I __?A try it on B try them o This pair of shoes is nice .can I ____? A try on it B try it a pair of trousers 是用it还是them This pair of shoes is nice.后面用May I try it on.还是May I try th I like glasses a lot ,can I ————?用try it on 还是try them on I want to buy this pair of jeans.Can I___?A.try on them B .t This pair of shoes look nice.Can I ___?A.try them on B.Put i