He is a carelsss person .He doesn't do his homework c( ) at times.填空

He is a carelsss person .He doesn't do his homework c( ) at times.填空 急,If Bob's savings earn 6 Per cent interest a year,how much interest is earnd annually for every dollar he saves? Mr .Lee owns a tea company and wants to make an exotic blend of tea .he has two brands to mix .one brand is an Indian tea that sells for $3.25 per pound .the other is a chinese tea that sells for $4.00 per pound .if he wants a mix of 35 pounds that w he is without work 和 he works 45 hours per week 有时候会不明白为什么前面用is 后面不用 he drives the car very fast and speed (l )is 6.5 kilometres per hour.怎么写 At what amount--per serving and per day?Is there a safe upper limit listed?求怎么翻译 per cent与percent的区别?Of the new students,sixty ______ girls.A.per cents are B.per cent is C.percent is D.percent are我想问下per cent与percent有什么的区别? 1.The cost of the trip is $20 per student.The trip ___ ___ ___ $20.2.Peter's main ___ is music,and he wants to see Beijing Opera in the teahouse.A.interest B.idea C.love D.habit ()is he?He is a doctortyhfggfgfgdf A man drives from his home at 30 miles per hour to the shopping center which is 30 miles from his home.On the return trip he encounters heavy traffic and averages 12 miles per hour.How much time does the man take in driving to and from the shopping c He is a doctor he is a HE IS A GAY He is a short he is a little He is a boy he is a simple he is a foolish