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Lin Qiaozhi，________ after a day’s work，went late at night

to deliver a baby for a poor family who could not pay her.

A．to be tired　　 B．tiring　　 C．having tired　　 D．tired

What c________ the terrible fire? It was a burning cigarette end.

The boy wanted to ride his bicycle in the street, but his mother told him _______.

A. not to　　　　　　　　　 B. not to do

C. not do it　　　　　　　　 D. do not do

He found the street much _____.

A. crowded　　　　　　　　　　　　　 B. crowding

C. crowd　　　　　　　　　　　　　　 D. crowdedly

"We can't go out in this weather," said Bob, ________ out of the window.

A. looking　

B. to look　

C. looked　

D. having looked

Three million tons of coal 　　　　in this district every year.

　 A. is exploited　 　　 B. are exploited 　　C. has exploited 　　 D. have exploited

1、生活中確實存在不講誠信的現(xiàn)象…

　　2、舉一例說明(如，有毒奶粉、冒名頂替上大學、考試作弊等)…

　　3、講求誠信的意義…

_______ fire, all exits must be kept clear.

A. In place of 　 　　　B. Instead of　　 　 C. In case of 　 　 D. In spite of