This is           maths problem (题).

A. an hard
B. an easy
C. a easy
D. hard

— What's his job? 
— He is ______ engineer. He works in a factory.

A. the
B. a
C. an
D. / (不填)

They will have _____ art lesson this afternoon.

A. the
B. a
C. an
D. /

Mr Wang is ______ old teacher. ______ is very strict.

A. an; She
B. a; She
C. an; He
D. a; He

Mary is in ______ red dress and her hair ______ brown.

A. /; is
B. a; are
C. a; is

A. our, Her
B. my, He
C. a, She
D. an, She

1. There are some old nurses in the hospital. (改为单数形式) 
    There _______ _______ old nurse in the hospital.
2. There is only one reading room in the school. (对划线部分提问)
     _______ _______ reading rooms in the school?
3. The flowers are in the park. (对划线部分提问)
     _______ _______ the flowers?
4. They are some birds in the tree. (对划线部分提问)
     _______ _______ in the tree?
5. I go to school at seven thirty. ( 改为一般疑问句)
     _______ _______ go to school at seven thirty?

A. a
B. an
C. the
D. /

[     ]

A. an
B. a
C. the
D. /

[     ]

A. the; a
B. a; the
C. an; a
D. a; an