We ------ (sleep)when the UFO -----(arrive)

why are we sleep? why we must sleep 英译中二Modern research can tell us some important things about dreams.First,we have most of our dreams during REM (Rapid Eye Movement) sleep.At this time,the brain is very active.Second,everyone dreams – even if we cannot remember doing so whe Why do we need sleep why don't we sleep? 名词性从句选择题 1,the traditional view is------we sleep because our brain is “programmed” to make us do soA;when B:why C:whether D:that 2,where’s that report I brought it to you ------you were in mr.black’s office yesterdayA,if B,whe Even while we sleep的sleep为什么不用加ing? what was wrong with him yesterday?whe knew宾语从句we knew bluesky whe we need at least eight_____(hour)sleep. we need to sleep well every day. our body r__ while we sleep We ------ (sleep)when the UFO -----(arrive) Shall we go to sleep, okay? what do we get from sleep? we are very __(sleep)in spring. we are very ___(sleep)in spring. Go and have ()before we set outa.some sleep b.the sleep c.sleep d.a good sleep