1 . Have you been aware   ______ under the tree   ______ two assistants?

A．that; are

B．that; is

C．of; are

D．of; is

2 . It is not the student himself but his parents that ___________(将要来学校)   (be)

3 . Every student as well as teachers who ______ to visit the museum ______ asked to be at the school gate on time.

A．is; is

B．are; are

C．is; are

D．are; is