（1）How long is David's vacation this year？
A.Two days.
B.About one week.
C.About half a month.
（2）Where did David spend the vacation last year？
A.In the mountains.
B.At the beach.
C.On the farm.
（3）Where does David's family live？
A.In Anhui.
B.In Sichuan.
C.In Henan.
（4）How old are David's sons？
A.Two.
B.Five.
C.Seven.