--- Whose volleyball is it?--- It ________ be Carla’s. She doesn’t like volleyball.
——A number of students _______ in the dining hall.——Yes. The number of the students________ 800.
——If you _______ careful enough, you may hurt yourself.——Thanks. I’ll be as _______as I can
If something is confirmed, it is ________
I like the pop star________ that I never miss the concert.
What I wanted to express went ________ words.