Is your father a teacher—Well, he _______.

Tom wants to be another Obama after he graduates from school. —- That sounds great, but how can he ____ a person like him if he goes on like this?

It’s already 10’clock. I wonder how it ____ that shewas two hours late on such a short trip.

Economy should be developed to raise people’s living standard , effective measures should be taken to deal with different types of pollution caused by the economic development

1—How’s theweather in your city?—It _________.