It took me some time to ____ what I had heard. A digest B swallow C eat D chew
If you really have to leave during the meeting, you’d better leave ____ the back door.
Fred entered without knocking and, very out of breath, sank _______ a chair.
People try to avoid public transportation delays by using their own cars, and_____ this creates further problems.
Scientists are convinced_____the positive effect of laughter_____physical and mental health.
This is a junior school.You should go to a senior school _____girls of your age.