Whose ping pong bat is this? — I’m not sure. I think it ______be Tom’s.

There are __________ flowers in the square during National Day.

Look at the picture______ the wall.[ ]

There are 60 students in my class and 44 of them use weibo veryoften.—44? That means about_______of your classmates are weibo users, right?

On the top of the hill ______ an ancient tower with a history of more than 1, 000 years.