We must follow Sign ______ to save every drop of water.
________the help of the police, the old woman found her way to her son’s.
I write down everything about the work in my notebook, _________it, I’d forget the things I should do.
— Helen, can I wear a T-shirt and jeans to the evening party? —OK. But a dress might be___________.
The driving test is not very difficult, and most people are_________to pass it.
The American film Avatar is worth ____________. It is really wonderful.