1.The manager knocked 10%______the charge.A.off B.over C.out D.of2.________does Jim visit you?A.How often B.How long C.How soon D How一共两道题,我拿不准,不一定要详解的

1.The manager knocked 10%______the charge.A.off B.over C.out D.of2.________does Jim visit you?A.How often B.How long C.How soon D How一共两道题,我拿不准,不一定要详解的
1.
The manager knocked 10%______the charge.
A.off B.over C.out D.of
2.________does Jim visit you?
A.How often B.How long C.How soon D How
一共两道题,我拿不准,不一定要详解的

1.The manager knocked 10%______the charge.A.off B.over C.out D.of2.________does Jim visit you?A.How often B.How long C.How soon D How一共两道题,我拿不准,不一定要详解的
很高兴能够在这里回答你的问题,这道题的正确答案应该为：
1 A
2 A
how often 多久一次

1. A  knock off 是打折的意思   2. A。 根据题意，只能选多久拜访一次。其他的意思和时态都不对。