I was unable to warn you because my telephone was … . A.off duty B.out of order C.out of work Answer and Feedback Answer:B do you want? view more test Xem thêm Share this post Some other questions you may be interested in. You had better ………………………….. a doctor. You don’t need …………………………….. all questions. Beethoven is ……………………………… than most other composers. I prefer watching TV …………………………… reading books. He is ………………………………. of my four children. The older we grow, ………………………………. we become. I have lived in cities so I …………………………….. the noise. It wasn’t easy for me to get ……………………………… up in the middle of the night. He …………………………… smoke, but now he doesn’t. I …………………………………. living alone.