Without the air to hold some of the sun’s heat,the earth at night .
.I’m _______ to admit that I’ve never read any of his books. disappointed B. frightened C. excited D. ashamed
.I looked under _____ bed and found ______ book I lost last week.
.________ the report, I handed it to John, but he said that George was the person to send it to.
.Finally they decided to go shopping ________ the rain.
____________ the Roman numerals, the Arabic numbers are rather simple to use.