精选优质文档-倾情为你奉上英语介词练习题答案选择最佳答案(注意与一些动词搭配使用的介词)Thank you _ your coming.A. to B. of C. by D. forHe spent a long time _ the maths problem.A. in B. on C. for D. atMr Li is going to help him _ his Chinese this afternoon.A. with B. on C. by D. atHow much did you pay _ this book?A. for B. at C. on D. withPlease translate the sentence _ English.A. into B. to C. at D. forThe price of the computer has been reduced_ 5%.A. off B. to C. by D.