大虾这写得对吗:B,Could you sign (this) MayChan's contract extension?

大虾这写得对吗:B,Could you sign (this) MayChan's contract extension? 能帮我看一下这句英文写得对吗?Could you please check with your boss?Thanks. 请帮我看看这句话我写得对吗?Could I help to you fill in it?中文背景是：我能帮你填写吗? Could you please confirm your choice?这样写对吗? 请帮忙看一下我这句英文写得对吗?Could you please move the meeting to the morning,may be 10:00-11:00?中文背景：你能否将会议移到早上,或许10点-11点? 请帮我看下我这句英文写得对吗?Could you please advise your avability to meet with Mr.Wang请问你能提供一下你什么时候见王先生方面? 求大虾帮看下我这段英文写得对不对,Dear Fan,I just got a call from the immigration department that you have to renew your certificate of registration form after you get a new visa.So,could you bring your passport and work permit to me t Could you speak English?这句话的语法结构对吗? Could you please confirm whether you will be available at 14:30 tommorrow.请问这句英文说得语法对吗? I'm sorry for that to you 这句话写得对吗? you may will win the match写得对吗 请问这句话写得对吗? 请帮我看一下这英文句子写得对吗?谢谢.If you change background color from red to green, then you could not be changed back to red.中文背景：哪果你将背京色从红色变成绿色,那你就不能再变回红色了. 我写得对吗?A对 B不对 改写同义句：There are a lot of things you could do.There are---- ---- things ---- you ---- ----.lots of;what could do对吗?感觉写错了,高手指教 请帮我看看我这句话写得对吗?I have checked the system that the billing is still outstanding.Could you please ask client send the payment copy to me,and I will check with Finance Department.中文背景：我已经查过系统了,这张账 Could you please confirm whether we can arrange a dinner with client after meeting?这样写对吗? could you plese not do sth如题～有这样的用法吗～这样写对吗～could you plese not listen to music too late?还是could you plese don‘t listen to music too late？