Ann is a careful girl．She always goes over her exercises to ____ here are no mistakes．

A．look for????????????? ????????????? ????????????? B．make sure????????????? ????????????? ????????????? C．find out????????????? ????????????? ????????????? D．think about

My name is Tom. My best friends are John and Ann. John lives near my house and we are in the same class. He’s tall and thin, he has blonde hair and blue eyes. He is polite and very clever. He is very good at math and sometimes helps me with my homework sometimes. He usually wears jeans and a blue T--shirt. We three often play basketball in a nearby park.
My friend Ann studies at another school.
She’s short and slim(苗条的) with straight brown hair and brown eyes. She’s a little bit shy. We all have Kong fu lessons every Tuesday and Friday afternoon. We love Kung fu very much. Ann is really good at Kung fu. We call her the “Kong fu girl”. Sometimes she practices Kung fu with us. She loves wearing a T—shirts and a hat. The three of us have great fun together.
【小题1】What does John look like?

Ann is a top student in our school and she does well in her subjects.

---This is my sister Ann.

---Is _____ a student?