—How many birds can you see in the trees?—I can see _________ birds in them.
----Are there ten books on the desk?----Yes, ________.
----________ is your friend? ----He is a policeman.
Miss Wang is _________ English teacher. ________ is a good teacher.
—Hi, Lily and Kate, are you classmates? —Yes, ________.
There is ________ “s” and________ “u” in the word “student”.