____ foreign guests come to our school for a visit every year and we exchange ____ information about education. [ ]

At least 300 million people are using QQ by Ma Huateng to chat online.

mericans live on credit, and their quality oflife is measured _________ how much they can borrow, not how much they canearn.

Good morning .I ________Ben.

The students will discuss a number of cases ____ beginners of English fail to use the language properly.