A-A+
______ the telephone was invented in the ninet
问题详情
______ the telephone was invented in the nineteenth century ______ speech sounds over a long distance in a few seconds.
A．Not until... could people send
B．Not until... people could send
C．Until... could people not send
D．Until... people could send
参考答案
正确答案：A
解析：该题考查考生对倒装句的掌握。Not until开头的句子要倒装。类似的句式还有Only when...，Only if...等。例如：Only when the data is complete will the transfer takes place．只有数据完整了，我们才能实施转让。
