求英语语法纠错（在线等）.
I’m afraid that I will have to cancel our appointment in Friday,as something has come up.
Just between you and I,prices will be higher on next year’s models due to a projected increase in the price of materials.
I’ll like to place a call to New Orleans,charged to my credit card.
Either John or Anthony are going to be giving a presentation at the meeting scheduled for this afternoon.
Of Tuesday,Wednesday,and Thursday,which is the better day for you to meet with the clients from ARC Engineering?