--- I’m sorry. I ___________ at you the other day.--- Forget it. I was a bit out of control myself.
In the past twenty years great changes _______in China.
The old city wall ______ in the Ming Dynasty.
The doctors have done ______ they could ______the child.
The teacher asked the students ______ .
I don’t know where I ______ my dictionary, which cost me 50 yuan.