Definition: sleeping or not awake Level: B1
孩子们还在睡觉。
The children are still ___asleep.
我的头一碰到枕头就睡着了。
I ___fell ___asleep as soon as my head hit the pillow.
长途飞行后，我立刻就睡着了。
After a long flight, I ___fell ___asleep immediately.
