I find _______difficult to get to sleep because the man upstairs made much noise.

Listen! Tom is singing in the next room.–It _______ be Tom. He has gone to Shanghai.

Good news! There is ______ a birthday party this weekend．—Great．I was told it was Mary’s ______ birthday this weekend．

It’s dangerous to let the children who are _____ go swimming in the river.

People pay ______as to the content of your speech.