The house could fall down soon if no one some quick repair work.

. A: Whose shirt is this? Is it Tom’s? B: No, it isn’t. ______________ is white.

The firemen _____ the fire in the end.

We still enjoyed ourselves on the Great Wall —–there were—— people during the holiday.

I wonder if you ____ a picnic tomorrow.—Yes. But if it ___, we’ll visit the museum instead.