Ladies and gentlemen, please fasten your seat belts. The plane__________.
I will stay at home and read some books if it ________ tomorrow.
—Who is ________ English teacher? —Well, it's Mrs.Green.She teaches ________ English very well.
There are more than fifty ________ in our school.
Lucy is ________ university student.She likes playing ________ piano.
This year the number of the US students ____in China has increased by 18.4percent compared to last year.