1.Lucy may know his name.
=Maybe Lucy knows his name.
2.He left she walked in the forest.
此句不通啊!
麻烦楼主赶快再次补充问题!
3.The students (cleaned the room) just now.
对括号内句子提问:
What did the students do just now?
4.We had (three) lessons this morning.
为括号内单词提问:
How many lessons did you have this morning?