It is very hot here. Would you mind ________ the window?
I didn’t hear your call because I__________to music at that time.
I won’t make such a silly mistake again. I’ll be__________ next time.
—Which of these shirts do you like best?— I’ll take ___________ . They are all expensive and out of fashion.
-- Someone is knocking at the door. Is it Amy?--It ________ be her. She is giving a performance at the theater now.
---What is happening over there?--- Oh, about ________ fans are waiting here. They want to see the great singer.