The plane for Yunnan will______ in two hours. Let’s go to the airport as soon as possible.

Isoxygentheonlygas______helpsfireburn? [ ]

I was told to meet Mr. Green at the airport. But I don’t knowhe will arrive.

She_______her little sister every morning after she gets up..

The pay phone is _____ Green Street and it’s across ______ the library.[ ]