I WAS JUST ABOUT ... THE OFFICE WHEN THE PHONE RANG. A. LEAVE B....

726. - 1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN
1000 CAU TRAC NGHIEM TIENG ANH ON THI THPT QUOC GIA CO DAP AN

726. I was just about ... the office when the phone rang.

A. leave

B. to leave

C. leaving

D. left