I am looking forward _______ the new film.

______of volunteers will be needed for the 2016 Olympic Games in Rio de Janeiro， Brazil.—I hope to go there and _______them.

are you doing outside the class Didn’t you hearthe clock ______—Sorry, sir. I ______.

How much difficulty did you have________________ this problem —_____________. It’s quite easy.

下列说法不正确的一项是（ ）