Mary is the _________ child of her parents.
How selfish it is _____ him _____ the cakes with others.
“I” the first letter in the word“industry”, there is also_____“u”and “s”in it.
---Do you like the song You and Me ? ---Of course ! It really beautful.
_______ is watching the TV. Turn it off, will you?
---By the way, how many of us can attend the meeting? ---The number of the students to attend the meeting _____ fifty.