Sam spends two hours _______ his homework every day.A. to do B. doing C. do
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.A, got B. reachedC. arrived D. reach for
He had to retire(退休)early _____ bad health.