I'm to go to Manchester next weekk.I will Montin __ I went there.

问题描述:

I'm to go to Manchester next weekk.I will Montin __ I went there.
A.if B.when C.once D.whenever
I'm to go to Manchester next weekk.I will visit Montin __ I went there.

once为何不能用when这个我觉得是根据句意来理解的,选最合适的。上文说下个星期要去曼彻斯特,我一到那里就会去Montin那个地方逛逛。反正我是根据感觉来的,具体原因说不上来。