一 I can't get on well with my family.
一 Why not talk with them?You should communicate ________ things become worse.
A.untilB.unlessC.afterD.before
I shouted to you at the gate,but you didn't hear me.
Really?I____a telephone call to my mother.( )
A.makeB.was makingC.madeD.have made
We will fail the exam____we study hard.
That's why we are trying our best to prepare for the exam.( )
A.untilB.whenC.unlessD.how
How time flies!We should show love for our parents and make them ______how much they mean to us.( )
A.to knowB.knowingC.knewD.know
All the students _____ know cheating in the exam is not allowed.( )
A.needB.mayC.mustD.can
Two disabled men from Hebei Province (one is blind and the other has no arms) have spent over ten years____ trees together.( )
A.plantB.plantsC.plantingD.planted