【单选题】Idon’t have to introduce him to you ____ you know the boy.
A. until
B. unless
C. since
D. but
A. until
B. unless
C. since
D. but
举一反三
- 中国大学MOOC: I dont have to introduce him to you _____ you know the boy.
- 【单选题】—Do you have Mary’s phone number? ---Sorry,_______. A.Idon’t know B. A. I don’t know B. forget it C. here you are D. I can’t remember it
- 7. Hello, I ____ you were in London. How long _________ here? A: A. don’t know; were you B: B. hadn’t known; are you C: C. haven’t known; are D: D. didn’t know; have you been
- 【单选题】_______________, I'd rather not sit next to the door. A. if you don't mind B. If you please C. If you like D. If you have no idea A. if you don't mind B. If you please C. If you l
- 【单选题】Don’t smoke in the office, ______? A. do you B. don’t you C. will you D. aren’t you