The two stories are mainly about______.

The subjects of ballads are usually about______.

In the second paragraph, the author talks about______. A: conclusions reached by the U.N. study B: Rafael M. Salas's personal opinions about the future C: the rate of population growth D: a flood of migration from rural areas

George Bernard Shaw’s play Mrs. Warren’s Profession is about______.

The advertisements above are about______. A: [A] shopping B: [B] food C: [C] travel

中国大学MOOC:"When you are interacting with people from the West, you should probably start with talking about______.";

The talks will be about______. A: solving border disputes B: analyzing their differences C: finding a way to carry out an agreement D: revising the terms of their agreement

Toni Morrison is interested in writing about______. A: White people B: Black people’s confrontation with White people C: what is going on within the Black community D: what is going on within the White community

What are they talking about A: They are talking about a project. B: They are talking about a product. C: The are talking about profit.

What was the population of London at that time（） A: About 500,000. B: About 70,000. C: About 13,200. D: About 5,000,000.