Students can't surf the Internet during lessons ______ it is for that lesson.
A: unless
B: until
C: while
A: unless
B: until
C: while
举一反三
- ---Your car doesn’t work properly. A: before B: during C: until D: while
- 26. We took advantage of its sports facilities _____ staying at the hotel.A) although B) while C) until D) unless A: although B: while C: until D: unless
- Mrs. Carson’s students are very ______. They talk and laugh loudly during the lesson.
- It is difficult for us to learn a lesson in life ______ we've actually had that lesson. A: until B: after C: since D: when
- It's difficult for us to learn a lesson in life____we've actually had that lesson. A: until B: after C: when D: since