Beforeyouleavetheclassroom，please__thelights.
Throughout_______history,Englishlanguagehasgonethroughmanychanges.
---_______doyouplaycomputer?
---Onceaweek,onlyonSaturdayevening.
---Iwilltakeanimportanttesttomorrow.
---Oh,really?________!
Thankyouforthe_______thatyougavemewhenIfeltEnglishtoodifficulttolearn.
