一道英语句型转换题目 题干He listened to the tape for half an hour.He took a bath after thatHe listened to the tape for half an hour,____ ____ he took a bath.要求：改为并列句横线上填上 later on书本上答案是 and then请问我这样做对不对

Later on/and then都是对的，意思是一样的，都是稍后，还可以改成这样。 He listened to the tape for half an hour,_after___ _what___ he took a bath.

later on用于句末~~

later on不对
英语里一个句子只能有一个谓语动词(动词原形/过去式/第三人称单数都是谓语动词).
and then里面and是并列连词,并列连词的作用就是连接并列成分,在这里它连接了两个并列的句子,既然是两个句子,那整句话出现两个谓语(listened,took)很正常.
而later on不是连词,不能连接句子,那整句话里出现两个谓语部分就不行了. 如果想用later on,可以把原句拆成两个句子,这样就保证了一句话一个谓语,可以说成:
He listened to the tape for half an hour. Later on(,) he took a bath.
或者仍用并列连词and来连接并列句,说成:
He listened to the tape for half an hour, and later on(,) he took a bath.

and then