More than a dozen students in that school ________ abroad for further study every year.

I was sleeping when the telephone rang again.It was the third time that I ________ that night.

The hard life in the mountainous area he has adapted to ____ a real challenge to anyone. 

Rose _________ tell her mother that she didn’t pass the exam.

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