72. We couldn’t read the notice on theboard because several people were standing _______ it.

She has lost all ______ of direction in her life. She is now so puzzled(困惑的).

More and more people find ______ necessary to protect our earth.

Excuse me. Do you know these English words —Sorry, I don’t. But you can __________ in a dictionary.

They didn’t think I couldthat expensive car, but in fact, I was quite able to.