There are many tall buildings on ____ sides of the street .
He________go out with his parents,but now he________staying at home alone.A.used to;is used toB.is used to;used toC.use to;is used to
—Henry,you________tell the teacher if you want to go out of the classroom.—Sorry,sir.A.are supposed toB.are surprised toC.are afraid to
Don’t ask him to study too late into the night.________,he is only a small child.
Animals are our close friends.We are supposed________them.A.to protectB.protectingC.protect
We________six days a week,but we only work five days now.