We improved the situation by stopping factories from putting waste into the rivers. (对画线部分提问)
________did you________the situation?
Tom has finished his homework. (改为一般疑问句)
________Tom________his homework?
Eating too much cold food is bad for your________ (胃), kids.
Mr Liu has taught for twenty years in our school, and he has rich teaching ________ (经验).
You must write down the________ (要点) because they are very important.
Now many students want to go________ (到国外) for further study.
