Which is your teacher?—The one _ thickglasses over his eyes is.[ ]

As time _________,we know each other better.

Please call Mike _________ 235-0285.[ ]

A strong earthquake hit Ya’an, Sichuan on April 20, and many people lost their lives.

There will be _____air pollution if there are_____ people driving. –I hope the air will be fresher soon.