The policeman warned us________ the busy street when the traffic lights are red.( )
don't cross
not crossing
not to cross
can't cross
cold weather it is!( )
A.How aB.What aC.What
There a pencil and some pens in the box.( )
A.isB.areC.aren't
They could look after when they were six.( )
A.ourselvesB.themselvesC.yourselves
﹣Do you know in class?
﹣Sorry,I didn't go to school,either.( )
A.what he saidB.what did he say
C.what he says
It will the workers ten days to finish all the work.( )
A.takeB.spendC.pay