What’s the weather like today— It’s ______ hot.

Many of them turned a deaf ear to his advice, _______ they knew it to be valuable

The potential of economic development of one regionvaries from ______ of another

As is known to us all, under no circumstances______ temporary economic development at the expense of the environment and resources.

Have all the students known that our class will visit the factory this afternoon?—-YesEvery student______about it