_______of the students ______girls in our class.

_____ to the United States? –No, never. But I went to Canada a few years ago.

It is well known to all that water, ______ enough, can change into ice quickly．

Zhou Ming likes reading English magazines. —_______. It’s good for English learning. [ ]

Do you know the boy________ is sitting next to Peter? — Yes. He is Peter’s friend. They are celebrating his ________ birthday.