New technologies have made __________ possible to turn out new products faster and at a lower cost.
Tom studied very hard, and he wanted _______ to his chance to Learn.
-What is the policewoman doing?-She raises her arm as a(n) _______ for us to stop.
The villagers have ______almost 200,000 yuan to build a school since last winter.
Lucy advised him not to buy the knife, but he bought it _______.
It was ______ hot in the room that I didn't like to stay there.