the history class is so boring that we a.felt sleepy b.fell asleep c.are sleepy

问题描述:

the history class is so boring that we a.felt sleepy b.fell asleep c.are sleepy
d.went to sleep
请说明理由

翻译:这节历史课如此无聊以至于我...
由于是“is”表示现在时,而A D排除.B是入睡,C是困意.C更合适,故选C