错：the price of this coat is very cheap.
对：the price of this coat is very low. / this coat is very cheap.
(price要用high / low形容，不能用expensive / cheap。)
错：there are 2 programs for you to choose.
对：there are 2 programs for you to choosefrom.
错：my parents go to the church every sunday.
对：my parents go to church every sunday.
(go to church 做礼拜；go to the church 去教堂)
错：the women are selling second-hand clothings.
对：the women are selling second-hand clothes / clothing.
错：the students who are coming from japan are hard-working.
对：the students who come from japan are hard-working.
(come from (出生于；来自) 不用于进行时。)
错：nowadays it is common that women go out to work.
对：nowadays it is common for women to go out to work.
(没有“it is common that …”句式，只有“it is common for sb to do sth”。)
错：my wife is an excellent cooker.
对：my wife is an excellent cook.
(cooker 厨具；cook 厨师)
错：we enjoyed a cup of wine with our meal.
对：we enjoyed a glass of wine with our meal.
(“一杯茶 / 咖啡”用a cup of；“一杯水 / 葡萄酒 / 啤酒 / 香槟”用a glass of)
错：i don’t do much exercise in these days.
对：i don’t do much exercise these days.
(these days前不用介词；in those days可以。)
错：her mother has died for ten years.
对：her mother has been dead for ten years. / her mother died ten years ago.
错：despite the train was empty, he came and sat in front of me.
对：despite the train being empty, he came and sat in front of me.
错：i was very difficult to make a fire in the open because of the wind.
对：it was very difficult for me to make a fire in the open because of the wind.
错：he bought the house at a 90% discount.
对：he bought the house at a 10% discount.
错：we spent two hours discussing about the course.
对：we spent two hours discussing the course.
错：i bought two dozens of apples.
对：i bought two dozen of apples.
错：they each has a beautiful daughter.
对：they each have a beautiful daughter.
错：the medicine proved very efficient.
对：the medicine proved very effective.
错：the two ladies are twins. can you tell which is the older?
对：the two ladies are twins. can you tell which is the elder?
错：they elected smith as the mayor.
对：they elected smith as mayor.
(选举某人任某职务用“elect sb (as) sth”。)
错：his work is better than anyone’s else.
对：his work is better than anyone else’s.
(else构成所有格时，-’s加在else之后，如someone else’s (别的某人的)。)