一.单项选择（25分）
（ ）21.—How often does your sister surf the internet? —About .
A. three time B. three times C. three time every day D. three times a day
（ ）22. —When is your father going to Hong Kong? —He is going there July 28th.
A. on B. at C. in D. to
（ ）23. Thank you for me find my little cat yesterday.
A. help B. helps C. helped D. helping
（ ）24.Are you good at ?
A. swim B. swimming C. to swim D. swam
（ ）25. — does it take you to watch TV? —About forty minutes.
A. How long B. How much C. How often D. How many
