try it on和try on it.为什么有的时候那个“it”要放介词前面,有时又放后面?

为什么要说try it on而不是try on it, try out和 try on有什么区别?The dress is very nice.Can I try it< 啊应该是on? try it on和try on it.为什么有的时候那个“it”要放介词前面,有时又放后面? this pair of glasses looks very nice.May i try ________?A:try them on B:try it on C:try on themD:try on it Try It On My Own 歌词 Why not try it on?什么意思 英语：是try it on 还是try on it?The shit is very smart .Can i___?A.try it on B.try on it C.try on them D.try them on 选择题：1 this coat is nice, can i____? A: try it on B: try on it C: try on them I like this sweater ,can I____?A,try it onB.try on itC.try them onD.try on them try them on try it on take them off take it Can I try it on?可以改成Can I try on it? This pair of shoes is very nice. May I ______.A.try it on B.try them on C.try on it D.try on them This pair of shoes is nice .can I ____? A try on it B try it on C try on them D try them on I want to buy this pair of jeans.Can I___?A.try on them B .try them on C.try it on D.try on it理由 The trousers are size medium .Please ___ A.try it on B.try them on C.try on it D.try on them原因 This blue dress is beautiful.Can I_____?A try it on B try on it C try in it D try it in These pants look very nice.Can I______?A.try it on B.try them on C.try on them This pair of leather boots( )NICE.Can i ( A.look:try it on B.look:try them on C.looks:try it onD.looks:try them on