The life of a professional tennis player is tough ________ you never seem completely free to do _______ you like --- even in the off-season.
Discovering consists of seeing what everybody has seen andwhat nobody has thought.
—Did the policeman let you in?—No, I told him who I was.
He likesmusic so much that I think it right to buy himMP3 asbirthday present.
I suggested not only _____ go to the meeting but also give a speech there.
Information obtained from libraries is sooner forgotten than ____.