Our room must ( ) clean.
A: to keep
B: be keeping
C: be kept
D: keep
A: to keep
B: be keeping
C: be kept
D: keep
举一反三
- It’s necessary for you (_____) the classroom clean. A: keep B: keeping C: to keep D: kept
- Our room must________clean. A: keep B: be kept C: to be kept D: to keep
- The classroom must ______. A: be kept clean B: keep cleaned C: kept clean
- The medicine （） cool, clean and dry. A: must keep B: must be kept C: must be keep D: must be i
- Her job is ______ the garden clean. A: keep B: kept C: keeps D: keeping