. There are ______ months in a year, and the ______ month is December.

What ____ sad news! We can’t get the movie tickets.

We really shouldn’t use plastic bags any more when shopping.—_____ It’s important to protect our environment.

— _______ the plane have taken off on time— I’m afraid not. So many flights were delayed due to the bitterly cold weather.

_____she forgets to bring ahealth certificate