— Why does he walk like that? It seems that he has great difficulty in walking.  — Because he got ____ in an accident three years ago.

After working until midnight for two weeks, he finally ______ and had to stay in the hospital.

My mother asked me where _____, and I told her that I was going to buy some food.

 All of us still remember the terrible tsunami that _____ the areas in the southeast of Asia in 2004.

The new teacher referred to________to our school yesterday.