-Why does the river smell terrible?-Because large quantities of water______.
Only when he reached the tea-house ______it was the same place he’d been in last year.
___ they visited our school, they showed great interest in everything they saw.
It_____everyone to hear all of the villagers behind the mountain were killed in the earthquake.
— large number of trees have been stolen from the forest,haven’t they?—Yes. number of them is 26,000.
Three quarters of some children’s spare time wasted watching TV -that can explain why they are lazy.