Knowing a lot of languages____him to make many friends across the worldA.helps B.help C.helping D.to help

Knowing a lot of languages____him to make many friends across the worldA.helps B.help C.helping D.to help the rules of gift giving in USA vary a lot,and___them can result in great embrassmentA.don't know B.not knowing选哪个,并且说一下为什么 lot a lot lots of a lot of 的用法 请问这句话是不是错了啊tom doesn't read so much,but lan reads a great deal / a lot这几话来自新概念自学导读,我想问的是a great of deal 不是后面加不可数吗 a lot of 造句 a lot of造句 a lot of have a lot of a lot (of)造句 what a lot of a lot of a lot of a lot of 翻译 a lot of hobbies get a lot of a lot more of get a lot of give me a translation please!part of having real style is knowing,at a glace,when an item of clothing can go one step further and be that much better.thanks a lot!i am waiting for the answer.:)