---May I open the window to let in some fresh air? ---________.A. Take care B. Hold on C. Go ahead
Tom studies _______. He _______ plays with his friends.
Eighty percent of the teachers ______ women teachers in our school.
Here ____ the results _____ the students activity survey.
When I______ at the hotel,it was very late.
He had to retire(退休)early _____ bad health.