1£®This kind of dress has been sold out.Would you like to exchange it for something else of the same price?

2£®There are (be) a great many habitants here who come from Scotland.

3£®If your parents couldn't afford to send (send) you to college£¬you may ask our national Project Hope for help.

4£®It's fascinating (fascinate) to see how differently people approach the problem.

5£®The American student gave me English lessons in exchange for Chinese lessons.

6£®Do you think that housing prices will keep going up in the years to come?

7£®The number of foreign students attending Chinese universities has been rising (rise) since 2007.