My name is Peter and I’m 12 years old. I don’t have a brother or a sister. I am in No.2 Middle School. My parents are Gray and Nancy Wilson. My father is a worker and my mother is a music teacher.

My father’s parents are David and Jacy Wilson. They don’t live with us. They live in the nearby city（附近的城市）. David is 63 and Jacy is 61. They come to see us once a month（一个月一次）.

My mother’s parents are Henry and Sara Smith. Henry is 62 and Sara is 58. They are farmers. They have a farm. They grow vegetables and rice（种植蔬菜和水稻）. I like to go to see my grandparents.

小题1:How many children do Gary and Nancy Wilson have?

A．One.

B．Two.

C．Three.

D．Four.小题2: Nancy Wilson is a(n)         .

A．worker

B．music teacher

C．farmer

D．We don’t know小题3:        is Nancy Wilson’s father.

A．David Wilson

B．Jacy Wilson

C．Henry Smith

D．Sara Smith小题4: How old is Jacy Wilson?

A．63.

B．58

C．62.

D．61.小题5:Who has a farm?

A．Mr. and Mrs. Wilson.

B．Peter’s parents.

C．Mr. and Mrs. Smith.

D．Nobody.

折线型坝最适合用（）观测水平位移。

A、视准线法

B、前方交会法

C、引张线法

D、小角度法