题目内容
12、Personal computers in 1976．It has changed the whole world．
A． are invented B． invented
C． were invented D． have been invented
试题答案
12、C
Personal computers in 1976．It has changed the whole world．
A． are invented B． invented
C． were invented D． have been invented
查看习题详情和答案>>Personal computers ________ in 1976．It has changed the whole world．
A．have been invented
B．was invented
C．were invented
D．are invented
Personal computers ________ in 1976．It has changed the whole world．
A．have been invented
B．are invented
C．were invented
D．invented
Personal computers ________ in 1976．It has changed the whole world．
A．have been invented
B．are invented
C．were invented
D．invented
Personal computers ________ in 1976. It has changed the whole world.
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|
A ．have been invented |
B ．are invented |
|
C ．were invented |
D ．invented |