If I were in a movie, then it would be about time that I ____my head in my hands for a cry.

At present , the butter factory is still polluting the river though it _____to stop.

 Donald ___ sixteen tomorrow.

---I am going to Beijing during the coming summer holiday.--- Great ! You ______about our capital well then.

－Do you know our hometown at all?－No, this is the first time I _______ here.