Knocking on closed doors before entering can be a great way for children to

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Knocking on closed doors before entering can be a great way for children to practice _________ behaviors.

A. respecting

B. respectful

C. respected

D. respective

* Đáp án

B

* Hướng dẫn giải

Đáp án B

respectful behavior: hành vi lễ phép.

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