The accident ________ at the corner yesterday.

A. happened

B. was happened

C. was happening

D. happens

Go ___________ the corner，and you'll find a bike．

　　A．against B．in　　C．at D．round

Look at the pictures. Complete the conversations with the correct 'Wh-' words.(Who, What, Where, Why ,How ,When)

Emily: ________ is this man?

David: He is a teacher.

Emily: ________ does he teach?

David: He teaches Maths.

Emily: ________ is his school?

Turn left ____ the corner of the street.

A．in               B．to               C．at               D．of