请问选哪个,为什么
Inmyopinion,lifeinthetwenty-firstcenturyismucheasierthan___.A:thatusedtobeB:itusedtob...
In my opinion,life in the twenty-first century is much easier than___.
A:that used to be B:it used to be 展开
A:that used to be B:it used to be 展开
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