Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 31 to 35. Saving energy means saving...

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 31 to 35.

A. are energy efficient

B. should only be used as replacement windows

C. should only be used in new additions to homes

D. will lower your heating costs by 50%

* Đáp án

A

* Hướng dẫn giải

Đáp án A

Thông tin trong bài: "Windows provide another opportunity to cut your energy costs. Caulk old windows that might be leaky to prevent drafts, and choose double-paned windows if you're building an addition or replacing old windows.

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