Never put off____tomorrow what you can do today.( )
A.untilB.beforeC.whenD.as
Jenny has a sweet tooth.Let's make some cookies for( )
A.meB.himC.herD.them
Do you know when ________ today?( )
A.is the bookstore closed
B.does the bookstore close
C.the bookstore closes
Don't enter the area.The students _______ an English exam.( )
A.takesB.are takingC.have taken
_______ she's wrong,it's not a big deal.( )
A.AlthoughB.BecauseC.If
His mother won't be there,________ his father might.( )
A.andB.butC.or