Which of the underlined words or phrases is incorrect? He still has much things to do before he can go on vacation- if h…

Did you know that neither Mr. Taylor...... Mr. Wilson teaches English anymore?

In which sentence is all CAPATALIZATION correct?

I am really busy now, but I will join you guys......... fifteen minutes.

Which sentence has the CORRECT WORD ORDER?

The boys’ mother told them to finish all of their breakfast, ..................... they stuffed their mouths until…