Life in twenty-first century is much easier than ___used to be .A.what B.that C.it 具体说明原因

(In my opinion,life in the twenty-first century is much easier than it used to life in the twenty-first century is much easier than ________.life is much easier than (it) was in the 20 centry求两个句子具体分析和对比life in the twenty-first century is much easier than it used to be life in the twenty-first century is much easier than it used to be.中的it used to be 是做什么成分不太懂这些东西 Life in twenty-first century is much easier than ___used to be .A.what B.that C.it 具体说明原因 In my opinion, life in the twenty-first century is much easier than what itIn my opinion, life in the twenty-first century is much easier than_____.A. that used to be; B. what it is used to; C. what it was used to; D. what it used to be;选D, life in the twenty-first century is much easier than ________.life is much easier than (it) was in the 20 centry 求两个句子具体分析和对比 We live in ( ) A the twenty--first centry B the century twenty-one C century twenty -oneD the century twenty-first 以 life in twenty years为题70字的作文 The first class in morning at twentyThe first class in morning at twenty to nine. 句子改错Look back on the first twenty years of my life twenty-first简写 Life in the twenty-first century is much easier than _____ A that used to be B it is used toC it was used to D it used to be that 和 it 作代词时的区别比如 life in the twenty -first century is much easies than _used to be .应填that还是it?请说明理由! First和one的区别Her twenty-first birthday is in 1999.first可以换成one吗? in the first day of my life 还是on the first day of my life in my opinion life in the 21st century is much easier than（）In my opinion,life in the twenty-first century is much easier than ________.A.that used to be B.it is used to C.it was used to D.it used to be 为什么不选A,that不也可指代么?我 Life in the twenty-one century will be very different as life today.亲爱的老师,正确答案是：Life in the twenty-one century will be very different from life today.如果我使用as 做连接life today I have about ( ) friends in my school.A twenty B twenty one C twenty-first D nineteen选什么 请说出原因