The new machine is supposed to be the solution to all our production problems, but”____”.

What heavy snow! Is everyone here today? –Yes. __________of us is late for school.

It’s said that __________ people died from car accidents in 2011. –How terrible!

The World Health Organization has given some advice onto protect us from being infected(感染） with H7N9.

There are _____fifty students in each class in our school. [ ]