If you ______ smoke, please go another place.

(单选题)Today, people are still wasting water ______ international a (单选题)—Listen! Is that Kate playing the piano in the room?—No. It (单选题)When I went to say goodbye to Anna, she ______ the piano. (单选题)My aunt has two children, but ______ of them lives with her. (单选题)Jack loves sports. He is often seen ______ basketball on the (单选题)Which of the following is CORRECT? (单选题)The development of PPT brings about ______. (单选题)Ben Velzian’s experience indicates that ______. (单选题)In which column of a newspaper may the article appear? (单选题)What’s the problem of the semiconductor approach?