37. How often do the buses run ?

A. "Twice or three times a day "                     B. "one or two a day "

C. " Every hour hours "                                 D.A & C are right

38. “_________do you write to each other?” --  “Very regularly”

A. How many         B. When                         C. How many                 D. How often

39. Shall we go out tonight? - ________   

A. Yes, we go.        B. Yes, let’s.         C. Yes, I can.        D. Yes, we are.

40. This orange tastes ______________

A. sweetly               B. sweety              C. sweet                D. Sweets