Never __ time come back again.A.will you loseB.will lostC.have I lostD.am I losing答案是B.为什么?不是D?请详细说明.

这是强调句。原句是Lost time will never come back again.D 没有办法解释

此句是将否定副词never引出的倒装句，若不倒装，则是：Lost time will never come back again.

根据句意可知时间是过去的时间,所以不用am
此句实际上是考部分到装,由否定意思的副词置于句首要半倒装
又如:Never have I went there.(=I have never went there.)

B\\
倒装句
已逝的时间不会再来
Lose time will never come back again.

部分倒装:助动词与主语交换位置
这句话用部分倒装是因为:用了never
因为如果句中含有否定意思的词 如no, not, never, seldom, little, hardly, at no time, in no way, not until… 等 都可以将否定词提前 将主语与助动词交换位置
原句为:Lost time will never come back again.
倒装后:Never will lost time come back again.

Never will lost time come back again.
这是部分倒装，正常顺序是：
Lost time will never come back again.
失去的时间永远不会重来。
这样就明白为什么选择 B 了吧？