Have you seen Bill recently — Oh, no! Nobody knows ______ he is! Everyone is looking for him.

OurEnglish teacher devoted herself____ to her teaching and it earned her a good reputation in our school

With the help of the firefighters, the people caught in the fire managed to escape to the safe place, ______.

Is this your English book — .

My sister met him in the hospital yesterday afternoon, so he _________ your lecture.