---I feel tired and sleepy. ---Why not stop______?
There serious air pollution if people use more and more cars.
Bad luck! We Mount Emei when it rained heavily.
–I’m not good at English, Amy. What should I do? --You practice it more. For example, you read English every morning.
she is used to ______ Englsh after she gets up every morning.
–When will the plane ? -- In half an hour.