The old photos ___________them __________the old days when they were young.
Sam’s been doing his homework since 8: 00, ______ he? A. isn’t B. doesn’t C. hasn’t
Most young people find ______ exciting to watch football games. A. one B. that C. it
Though my grandpa is 60, he’s full of ______ energy and like a young man. A. a B. 不填 C. an
I want to stop him ________ the window . It’s cold outside. A. to close B. from close C. closing
Boys and girls, keep_____!We should always keep our classroom_____. A.trying,cleaning B. try,cleaned C.trying,clean