Police are now searching for a woman who is reported to ________ since the flood hit thearea last Friday. [ ]

— Why do you do volunteer work in the North-West?— I_______ to improve the lives of the children there through my efforts.

If eating makes you feel better, you can go to your favourite restaurant to have a nice meal. The sentence elements(成分) of the underlined parts is_______.

The government has taken measures ________ air quality.[ ]

Hey, Mary! What is your brother’s — Oh, it’s Tom.