What is the ideal temperature for falling asleep?
举一反三
- 【单选题】Dad_______whilehe________TV. A. fell asleep; watch B. was falling asleep;watched C. fell asleep; was watching D. had fallen asleep;watched
- When Ilived in the farm, falling asleep was never a problem for me.
- Victor had a hard time falling asleep because he is stressed out.
- ________ the temperature falling so rapidly， we couldn‘t go on with the experiment.
- What is “the ideal rule”?