-- The cars give off a great deal of waste gas in the streets. --- Yes. But I’m sure something will be done to ___ air pollution.
He ___________ his friends for their help at the hotel now.
___________ I can see, there is only one possible way to keep away from the danger.
If you don't know his ___________, I think,it's very hard for you to get along with him.
She ___________ for three years and given birth to two children.
He arrived home after the long journey,___________.