第一节:语法和词汇知识(共15小题;每小题1分满分15分)
21. I soon found that the work I was doing had already been done by someone else---______, I was wasting my time.
A. in a word B.in other words C. upon my words D.in words
22. The Great Wall is beautiful and I look forward______it.
A. to visit B. in visiting C. to visiting D. and visit
23. You should not have such an attitude_______your parents.
21. I soon found that the work I was doing had already been done by someone else---______, I was wasting my time.
A. in a word B.in other words C. upon my words D.in words
22. The Great Wall is beautiful and I look forward______it.
A. to visit B. in visiting C. to visiting D. and visit
23. You should not have such an attitude_______your parents.