koalas sleep 20 hours ( )day. 1.a 2.an 3./

koalas sleep 20 hours ( )day. 1.a 2.an 3./ 翻译：sleep during the day.twenty-four hours a day. the teacher busy.He (sleep)six hours a day. ( )hours does the koala sleep every day?A.How School students need eight hours of sleep a day,____? Babies sleep for up to eighteen hours a day. I sleep eight hours a day 就eight提问 sleep,a,they,day,hours,twenty 连词成句 We should sleep at ( ) for eight hours a day 速度解决初一下册英语题Students ______ nine hours a day. A sleep B sleep Theanimal usually sleep and（）20 hours every day. The koalas sleep during the day 改为特殊疑问句