When he went to a party, he accepted a cigarette which he was offered by a friend可不可以改为When
问题描述：
When he went to a party, he accepted a cigarette which he was offered by a friend可不可以改为When
When he went to a party, he accepted a cigarette which he was offered by a friend.可不可以改为
When he went to a party, he accepted a cigarette which offered by a friend.
答
你给的原句怪怪的
一般说When he went to a party, he accepted a cigarette （which was ）offered by a friend