Tom didn’t come last night,did he?—No.I _______ have waited for him.A whole night was wasted.

_______ they_______, their classmates were all in the classroom.

You could ____the bike from Wei Fang.—But she____it to Zhang Hua.

The value of the teaching method ______ the interest it inspires in the students.

_____ to surfing the Internet, he fell behind with his lessons [ ]