.---My brother fell off his bike and hurt himself. --- .
Mr Zhang is a Maths teacher .He teaches ______Maths ______.
My grandpa likes ___________newspapers in the morning .
How many _______are there in our school ? About 20 .
Lucy with Andy _____good at Chinese .We often help them _______their Chinese .
There is ____”U” and _____”S” in the word “use”.