They _____very dirty.   (    )

A．is

B．was

C．were

用所给词的适当形式填空。
1. Tom and Mary ___________ (come) to China last month.
2. Mike _______( go) to bed at 12 o'clock last night.
3. Mary ________ (have) English class yesterday morning.
4. Tom ___________ (begin) to learn Chinese last year.
5. My mother _________ (do) housework yesterday.

—How did you go to school this morning? (  )
—My father ________ this morning.

A．drives me to school	B．takes me to school
C．drove me to school	D．drove me school

Dad ________ a computer for me yesterday. (   )

A．buy

B．buys

C．bought

用be动词适当形式填空。
1. I  ____ an English teacher now.   
2. She ____ happy yesterday. 
3. They ___ glad to see each other last month.  
4. Helen and Nancy _____   good friends.   
5. Look, there ____ lots of grapes here.   
6. There ___a sign on the chair on Monday.