If I had known …, he could have been invited to speak at the ceremony. A.who he was B.he was who C.whom he was Answer and Feedback Answer:A do you want? view more test Xem thêm Share this post Some other questions you may be interested in. People are not allowed __________ in the kitchen. __________ events cast their shadow. If the program still doesn't work, try ________ the software Don't forget _____ your mother! I prefer _______ by air. Lock the door before ______ out. Waiting for a bus is a _______ experience. Can you live without __________ water? Without the advice of a doctor __________ medicines is dangerous. He decided to give up ____ after that experience.
