The lights is on．When you leave，please _____．
OK，I won't forget ____it．（ ）
| A． |
turn it off； to do |
| B． |
turn off it； doing |
| C． |
turn on it； to do |
My grandparents like stories ____ have happy endings．（ ）
A．theyB．whoC．whichD．/
A primary school in England has ____ signs at its three entrances（入口）， saying： Greet your child with a smile， not a mobile．（ ）
A．put intoB．put offC．put onD．put up
The TV news reports that there ____ a storm the day after tomorrow．（ ）
A．isB．wasC．will beD．has been
When you are in your school dining hall during lunchtime， you may not feel lonely _______ you can find someone to have lunch with．（ ）
A．ifB．unlessC．afterD．because
I didn't see you ____ in． You must have been very quiet．（ ）
A．comesB．to comeC．comeD．have come