( )21. ______of that country_______ by snow.
A. Second thirds ; is covered B. Two thirds ;is covered
C. Two thirds; are covered D. Two third; covers
( )22.---Would you mind watering the flowers for me?
---______. I have to go to the post office.
A. Not at all B. Never mind C. No, please D. Sorry, I can’t
( )23.We’ve _______ food in the fridge. There’s ______ in the kitchen, either.
A. no, none B. none, none C. no, no D. none, no
( )24. This kind of milk costs so ______ these days ______ I buy some.
A. cheap, so B. cheap, that C. high, that D. little, that
( )25. Did you prefer ______ shopping to _______ at home?
A. to go, staying B. going, stay C. going, staying D. go, to stay