The classroom must ______. A: be kept clean B: keep cleaned C: kept clean
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
The medicine （） cool, clean and dry. A: must keep B: must be kept C: must be keep D: must be i
---Must I clean the room now? --No, you __________.
---Must I clean the room now? --No, you __________.
Must we clean the house now? No, you _______.
Must we clean the house now? No, you _______.
Fine water for the tea must be sweet, , clean and flowing.
Fine water for the tea must be sweet, , clean and flowing.
You ________ clean that room. It is very clean now. A: must B: have to C: need to D: don’t need to
You ________ clean that room. It is very clean now. A: must B: have to C: need to D: don’t need to
One reason for the good health of the people in Vilcabamba must be the clean, beautiful environment.
One reason for the good health of the people in Vilcabamba must be the clean, beautiful environment.
---Must we clean the classroom before class?---No, you ___ (not). They will do it after class.
---Must we clean the classroom before class?---No, you ___ (not). They will do it after class.
It is high time the hotel _______ this bedroom since it's in such a mess. A: clean up B: cleaned up C: cleans up D: must clean up
It is high time the hotel _______ this bedroom since it's in such a mess. A: clean up B: cleaned up C: cleans up D: must clean up
It's dirty. ____ we clean the classroom? A: Will B: Shall C: May D: Must
It's dirty. ____ we clean the classroom? A: Will B: Shall C: May D: Must