The students leave school a little _____ than usual _____ Friday afternoon.
_______ the help of my teacher, I worked out the problem in the end.
The little boy often makes his mother _____him _____.
——would you like somewhere__________?——No, thanks. I have a big room ________.
What action should they _____________such a thing happen again?
You must stop and wait for your turn when you see the sign______.A. B. C.