The meeting ___________ because of the smog in Northern China last week.— Oh, it’s too bad! We should take action to improve the air quality.

_____ are you leaving for Shanghai?—”In two days.”[ ]

With modern equipment，many mysteries have ________ to light in recent years.

Look! What’s that? -I think it’sbird.

I’ve got a ticket for the basketball game tonight.—Cool! How ________ you ________ it?