Đáp án:
1, It takes me ten minutes from my house to school.
2, How much does this book cost?
3, It takes me half an hour to get to school.
4, Whai is the total of those postcards?
5, Is this the cheapest phone card?
6, Our area will not necessary to finish the work today.
7, Mr. Smith will go to Viet Nam by plane next week.