Jack said the paper was too hard when he was asked why he failed the exam again..— Well, _____.

(2009安徽合肥质检) Is this the restaurant ___________ ?

When the astronauts came back from space, many reporters interviewed ________.

Look! A man is cutting a tree on the moon. –It ______ be true. The teacher said there is no air on the moon.

He decided to work __________ than last year.