We collected a lot of books to get the necessary information but only half _________helpful, so we failed to finish the work.

It is none of your business other people think about you. Believe yourself.

The little boy was togo out alone.

The battery in my cell phone is running low—- I _____ that last night before we went to bed

tuation forced my mother and I exchanged our rolesas child and caretaker, making me grow up much faster than the _____ child.