Question

The old man needs at most five hours' sleep a night, but he ______ for over seven hours tonight.

A. has fallen asleep B. has slept C. has gone to bed D. has gone to sleep

Answer 1

选B，has slept
fall asleep, go to bed, go to sleep指的是睡觉的动作，即一瞬间 sleep本身可以指睡着的状态，可持续。而题中说已经睡了超过7小时，是个持续的状态

Answer 2

B. has slept

表达“已经睡了”的意思

Answer 3

A
fall asleep 入睡

Answer 4

B对，看清动作还是状态，此文需要的是状态。