The students have cleaned the classroom, _______?
举一反三
- The students _________ their classroom when the visitors arrived.A . have cleaned B. had cleaned C. was cleaning D. have been cleaned
- The students have cleaned the classroom, ____ ? A: do they B: don’t they C: have they D: haven’t they
- I cleaned my classroom ___________.
- The classroom needs _____. A: clean B: to clean C: to be cleaned D: eing cleaned
- The classroom needs______. A: clean B: to clean C: to be cleaned D: being cleaned