英语：句型转换（回答对了我采纳）He can read this book.(改为现在进行时)______________________________________________They are typing the letters.（就划线部分提问）【对typing the letters提问】_______________________

英语：句型转换（回答对了我采纳）
He can read this book.(改为现在进行时)______________________________________________
They are typing the letters.（就划线部分提问）【对typing the letters提问】__________________
______________________

1、He is reading this book,now.
2、What are they doing?

He is reading the book now.
What are they doing?

He is reading this book.
What are they doing

He is reading this book. 或者He can be reading this book.
第一句不太明白你想要的结果。
What are they doing?