Teenagers________their health because they play computer games too much.

I ________ while reading the English textbook. Luckily, my roommate woke me up in time! 

Although she is pretending hard to be young, grey hair and the lines on her face _______.

It was reported that an agreement ____ between the two companies and that they would carry out a project together.

— Is there anything wrong, Bob? You look sad.— Oh, nothing much. In fact, I ________ of my friends back home.