句型转换。
We can take good care of ourselves.
We can _______ ________ ourselves well.
David went to England last year. He is still living there.
David _______ ________ in England for one year.
They have stayed here for two weeks.
________ _________ ________they ________ here?
Bob isn't here. He is now in Beijing.
Bob _______ _________ _______ Beijing.
Jane has traveled to Japan and she has come back.
Jane _________ ________ _________ Japan.
Jim's mother can hardly believe her eyes.
Jim's mother can hardly believe her eyes, __________ __________?
He's finished cleaning the room.
He's finished cleaning the room, _______ __________?
Ken was so busy that he couldn't go home at once.
Ken was _______ busy _______ go home.
How many people are there in the world now?
_________ ________ the ________ of the world now?
There were not any hospitals or doctors.
There were ________ hospitals ________ doctors.