( )19. --- “_____ do you go shopping?” ---“Once a week.”
A. What time B. How long C. How often D. How soon
( )20. ---Did you ever get an answer ______ your letter? ---NO.
A. to B. of C. for D. with
( )21. “_____ do you like Chinese food?” “Oh, very much.”
A. What B. Why C. How D. How much
( )22. _____ it is raining, _____ he is still working outside.
A. Although; but B. Although; / C. But; although D. /; although
( )23. My parents want me _____ milk every day.
A. to drink B. drink C. drinking D. drank
( )24. I’m sorry to keep you _____ so long.
A. wait B. to wait C. waiting D. waited
