It is fine weather to row a boat on the lake. (改为感叹句)
weather it is to row a boat on the lake!
Susan has been a volunteer in the hospital for three years.(就句子画线部分提问)
has Susan been a volunteer in the hospital?
Mobile APPs will be helpful to English study.(改为否定句)
Mobile APPs be helpful to English study.
Many students like reading books better than playing computer games.(改为同义句)
Many students reading books playing computer games.
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?