----What colour are the shoes? ---- .
Granny often tells us _______ water in our daily life.
—What _______ the number of the students in your school?—About two thousand. A number of them _______ from the countryside.
Hurry up! Once the concert starts, nobody _______ to enter the concert hall.
Your dream will come true _______ you put your heart and into it.
—Could you please have a walk with me?—Sorry, I _______. I have something important to do now.