The number of articles published on cancer __ amazing.

a. are b. is c. have been d. be

此题要求改正所给短文中的错误。对标有题号的每一行做出判断：如无错误，在该行右边横线上画一个勾（√）；如有错误（每行只有一个错误），则按下列情况改正：

此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。此行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写出该加的词。此行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。

　 注意：原行没有错的不要改。

One morning， I got up early, so I went to outdoors for　　　 1.__________

a change. It was so early when I left home that streets were　　　 2.__________　

deserted. Without the usual crowds and traffics, everything　　　 3.__________

was very quiet. I made my way for the park, and found,　　　　 4.__________　

to my surprise, that there were such many people there.　　　　 5.__________

Some were doing morning exercises, some were sitting　　　

peacefully on the benches, some were feeding pigeons.　　　　　 6.__________

One or two hours late, I left the park and walked home,　　　　　 7.__________

feel much refreshed and very energetic. An old English　　　　　 8.__________

saying suddenly comes into my mind, “ Early to bed　　　　　　 9.__________

and early to rise makes a man healthy, wealthy and　　　　　　 10.__________

wise.” I do believe it.

— Do you mind if I open the window?

— _________ I feel a bit cold.　　　　　　　　　　　　　　　 (广东 2004)

A. Of course not. 　　 　 B. I'd rather you didn’t.

C. Go ahead.　　　 　　 D. Why not?

The problem is how ____ the drug abuse remains in America.

A． regular　　　 B． practical　 C． severe　　 D． obvious