Mr. Davis has not missed a single lecture ................ he started teaching.

Has anyone seen Chris recently? I....................... to contact him since last Monday.

Which of the underlined words or phrases is INCORRECT? Last night, Ali reads two articles about marketing to prepare for…

Adam .............................. a book now.

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

If I hadn’t worked so hard, I .................. a new car now.