Many people like to talk about generation gaps. I don't think there is  ________       in my family though.

.－It was snowing heavily last night. Is everyone here now?－Yes, and _____ of us was late for school this morning.

Many people complained about the stones lying on a road, but _______ did anything about getting the stones out of the way.

The cost of buying a house in Beijing is higher than ______in Luoyang。

_______not to be late for the meeting, we arrived forty minutes _______ the required time, but after _____seemed hours of waiting, we were informed the meeting had been canceled.