1.students should focus on studying.
2.car drivers should be responsible for the security of passengers.
3.finishing having these courses of the night school will lead to the degree.
4.the school will provide students with food and drinking.
5.that fire is owing to their ignorance.
6.this movie has an effect on him
7.all the teachers care about the progress of my study.
8.traditionally,chinese teenagers are always living with parents before marrige.
9.what are these customers complaining about .
10.we usually consider that dogs are smart animals .
11.the killing of insects has caused the unbalance of the environment .
12.the key of passing the cet-4 is to believe that studying hard will make a difference..
13.morning exercise does good to the body health.
14.the scenery of da ming lake is like a picture ,which is beyond expression.
16.the old bus creaked and grinded to a halt at the bus station .
17.it is necessary to dispense with these unrealistic routine.
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