23.—Good morning, New York Hotel. —Hello, I’d like to book a room for the nights of the 2nd and 3rd.—__________.
Although Anne is happy with her success, she wonders ________ will happen to her private life.
________ there are living creatures in the outer space as those on Earth hasn't been proved until now.
We haven't settled the problem of ________ it is necessary for him to study abroad.
It surprised us all ________ Kate made such big progress in this final exam.
________ some teenagers don't realize is ________ difficult life can be after they get addicted to drugs.