—____ your sister know Tom?
—No, she ____.
A. Do; don’t       B. Does; doesn’t   C. Do; do

         trousers            ?

— _______? —She is thirteen.

—Hello! Are you Mr Wang?
— _______

_______is the population____the USA?

---______ do you exercise?
---Once a week.

—______ you _______ Mount Qingyuan these days?
—Yes, I have. The mountains are more beautiful.
A. Have; gone to          B. Have; been in       C. Have; been to

How much are these shoes? _________ twenty dollars.

--Is there a post office near here? -- ____ .

－______ is Toney’s opinion about English food? 
－Delicious.