Some environmentalists are dubious of the statement that the air quality in this city has

Some Indians are friendly to us.（英译中)

听力原文：（A) Some people are sitting next to the fountain.（B) Some people are waiting for

听力原文：（A) Some boats are sitting in the water.（B) Some people are fishing.（C) The boats

Markets are the system that （)some people’s demands and some other people’s supplies.

Some comments are just inviting trouble.

Some comments are just inviting trouble.