There are _____ living things on the earth， we must care for our home — the earth.

_______ in a long queue, we waited for the store toopen to buy a New iPad .

The temperature _____from 15 to 35 degrees. [ ]

单项选择（每题1分）Is this the reason _____ she explained in the report for her success in the job?

The bus _______ at 8:30 p.m., so I have to be at the station by 8:10 at the latest