—Catherine, I have cleaned the room for you.——Thanks, You it. I could manage it myself.

Mr. Smith always ________ short stories，buthe ________ a TV play these days.

Where did you put your schoolbag —I can’t remember. I attended a concert yesterday so it still l be in the music hall.

rst thing you must remember is that in order to succeed, it is almost compulsory that you ______ optimistic.

The blame for this accident the man who destroyed the signal.