____ you are a high school student, you are responsible for what you do.Which of the following is WRONG?
This book is worth ______ . A to read B.reads C.read D.reading
You should apologize ____ your teacher ______ being late again.
When _______ this question, she keeps silent.
Why _____ join us in the game!
____a living, she had to work from morning till night.