______ you must do is to choose a scene _______ will best show your acting talent.

I’m thinking of losing weight these days. —-Oh, you ______ be out of mind. You’re 50 kilograms at the most!

.After school he didn’t go home，____he went to the Internet café.

She’s a lot older than you,isn’t she?—Fifteen years,to be _________.

Bad performances in the exams are closely connected with a ____ of exercise.