My brother used to _______ up late, but now he is used to _______ up early.
Very loud noises make people ill. So we make great noise.
of the students in our class money to the quake-hit areas these days.
This is river. Few of us can swim it, I think.
---Harry Potter Ⅶ will be on this Saturday evening. Would you like to go to see it with me? --- No, thanks. I it.
This book is a bit difficult. _______ read another one?