Mr.Smith gave me a very valuable present,________ that I have never seen.
问题描述:
Mr.Smith gave me a very valuable present,________ that I have never seen.
Mr.Smith gave me very valuable presents,_______ that I have never seen.
please explain
答
史密使先生送给我一个非常有价值的礼物,这个礼物我以前从来没见过