They live on the (十二) floor.
I don't think students should be a to bring mobile phones to school.
Notre Dame Cathedral is one of the most famous c in the world.
They saw a group of ducks swimming (慢慢地) across the lake.
F is the second month of a year.
The teachers often tell us not to copy (别人的) homework.
The more fruit and vegetables you eat, the ________(健康) you will be.