1 It is often the case that 2 It’s a fact that 3 It seems that 4 It’s said that 5 It’s reported that 6 It’s believed that 7 It’s universally accepted that 8 It’s announced that 9 It’s estimated that 10 It must be admitted that 11 It’s obvio...
Watermelon contains L-citrulline, an amino acid that may help reduce muscle soreness after a workout.西瓜含有L-瓜氨酸，这种氨基酸可以帮助减轻锻炼后的肌肉酸痛。The way it wo...
More recently, the Institute of Medicine reported that the shorter workweek did not help residents. It said they were getting far less sleep than they should. The report sa...
1、The house is dark; the Browns ___ to bed. A. may go B. should go C. should have gone D. must have gone 2、—That car must have cost a lot of money. —Oh, no, ___. A. it mustn’t B. it hasn’t C. it doesn’t D. it didn’t 3、I ___asleep...
Mr. Koziatek is part of something pioneering. He is a teacher at a New Hampshire high school where learning is not something of books and tests and mechanical memorization,...
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