Điền đáp án và dấu hiệu nhận biết

.makes us diffcult to sleep. C. who 25. The streets are noisy,. A. which B. that D. whom 26. ..for 2 hours? A. Have your windows painted C. Have you windows being 27. Mr Brown..... B. Have your windows been painted D. Have your windows painting .three books for 3 ycars. B. haswritten C ...