Instruction

Select the best answer to complete the sentence.

1. She placed her hand -------- on her baby’s cheek.

2. Our English teacher -------- that students should only speak English in class.

3. The world is -------- with the challenge of protecting the environment.

4. According to the research, persistent -------- of sleep has a negative influence on the metabolism.

5. One of the office computers in the office -------- broken.

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