27. A: What’s the matter, Sara? You wear a sad look on your face. B: Oh, nothing much. As a matter of fact, I _______ of my friends back home.
I was really too busy with my homework and I couldn’t help ____ the housework.
---How about camping this weekend, just for a change? ---OK, ____you want.
.It is widely accepted that young babies learn to do things because certain acts lead to ______. rewards B.prizes C.awards D.results
Li Ming won the first prize in the speech contest and I’m glad that his efforts at last _____. paid off B. worked out C. got back D. turned out
You had better take something to read when you go to see the doctor____ you have to wait.