A.       B.      C.       D.

⑴{#blank#}1{#/blank#}—Let me clean the blackboard.

—All right.

⑵{#blank#}2{#/blank#}—Who is your friend?

—He is John.

⑶{#blank#}3{#/blank#}—Let me help you.

—Thanks.

⑷{#blank#}4{#/blank#}—Who is she?

—She is my sister.

⑴ {#blank#}1{#/blank#} a. It is half past twelve.   A. Go to bed.

⑵ {#blank#}2{#/blank#} b. It is seven o'clock.     B. Let's have lunch.

⑶ {#blank#}3{#/blank#} c. It is nine o'clock.       C. Go to school.

⑷ {#blank#}4{#/blank#} d. It is a quarter to eight.   D. Get up.