— ______ does Tom surf the Internet ? —Twice a week .      

He had little bread for breakfast this morning,___________ he?

We can't work out the physics problem. Can you tell us         ?

The money is used to ________ poor people and to support development projects.

—My cousin often has nothing for breakfast, _____ she?— _____. Because she often gets up late and is afraid of being late for school.