助动词后面所有动词都要原型吗比如:Did they sit down under a big tree and ( ) a chat括号里面加have还是had
问题描述:
助动词后面所有动词都要原型吗
比如:Did they sit down under a big tree and ( ) a chat
括号里面加have还是had
答
助动词后面所有动词都要原型吗
比如:Did they sit down under a big tree and ( ) a chat
括号里面加have还是had