The chemistry teacher, …… everyone liked, retired last year.

Which sentence las CORRECT PUNCTUATION?

Which of the underlined words in the sentence is INCORRECT? To become a doctor and to helping sick children are the goal…

I’m afraid you're late for dinner. All the food has ......... .

George: May I speak to Mr. Ben, please ? Secretary: I’m afraid he ....... a meeting right now. Could you call back…

Which of the underlined words or phrases is INCORRECT? Adam don't seem to mind whether he studies at home or abroad.