I can’t believe that _____ a little girl can write _______ many stories.
-- Could you tell me something about the boy who helped you just now? -- Sorry, I know nothing about him. We are______. A. friends B. strangers C. classmates
There are so many kinds of computers in the shop. I really don't know ______ to choose. A. what B. which C. where
- Excuse me. May I use your eraser, please? -- Sure. ______ A. Watch out! B. Well done! C. Go ahead.
_____has your brother studied in New York? —For two years. A. How old B. How often C. How long
Bob promises to join in the football match ______ he has to help his parents on the farm. A. if B. as C. unless