急需You need much fresh air when you sleep.So it's not good to

急需You need much fresh air when you sleep.So it's not good to sleep __ the wind
填介词You need much fresh air when you sleep.So it's not good to sleep __ the winddows
对by 5:00 yesterday afternoon怎样提问
该同意句My friend picked me up at the station when I was waiting for the bus 该成My friend ___ ___ ____ ____at the station when I was waiting for the bus
The meeting began only three mintues ago改成The meeting___ ___ ___for only three mintues