The thieves ran away as soon as the alarm _____.

Milk quickly goes bad in summer it is in a fridge (冰箱).

The meeting ___________ because of the smog in Northern China last week.— Oh, it’s too bad! We should take action to improve the air quality.

. _____is known to us all, America is a developed country____ the first world.

Did you have fun ________with your teachers on the Internet