I’m fine — I just felt a bit sleepy and tired, that was ________ I went to bed so early." A．

Question

I’m fine — I just felt a bit sleepy and tired, that was ________ I went to bed so early." A．because B．when C．that D．why

Answer 1

D

考察表语从句.句意,我很好——我只感到有点困和累，那是为什么我这么早睡觉的原因。可知前文为下文的原因，故选D。