Instruction
Select the best answer to complete the sentence.
1. Please leave a window -------- till I come back home.
2. According to the research, persistent -------- of sleep has a negative influence on the metabolism.
3. Do you remember -------- to the circus when you were a child?
4. ------- the textbook, the Kamakura Shogunate was overthrown in 1333.
5. It goes -------- saying that cheating on the exam is not permitted.
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