Ellen has already bought some flowers. (改为否定句)
Ellen bought any flowers .
Let's discuss when we shall go to the Sea World.(改为同义句)
Let's discuss go to the Sea World.
I was studying for the test when the rainstorm came.(对划线部分提问)
were you when the rainstorm came?
People will use robots more and more in the future life.(改为一般疑问句)
people robots more and more in the future life?
Dave's father went to bed after he came back home last night.(改为同义句)
Dave's father go to bed he came back home last night.
It took me two hours to finish watching this film.(对划线部分提问)
did it take you to finish watching this film?