典型例题

　　1. In ______ century computers will be used more widely.

　　A. twenty-one B. the twenty-one C. twenty-first D. the twenty-first

　　序数词前加the.

　　答案 D

　　5. “What did the professor tell you to do?”

　　“I had to write a ______ report. ”

　　A. two thousand words B. two-thousands-word

　　C. two-thousand-word D. two-thousand words

　　答案 C

　　6. “Did you buy anything at the clothing sale?”

　　“Yes， I bought three _____ ties for just twelve dollars.”

　　A. five dollars B. five-dollars C. five-dollar D. fifth dollar

　　答案 C

　　8. What date is it ? It's ________.

　　A. July twentieth-first B. July the twenty-first

　　C. the twenty-first of July D. Both B and C

　　7月21日：July the twenty-first

　　the twenty-first of July

　　答案：D

　　10. “Rex told me you have moved.”

　　“Yes， into a _______.”

　　A. two-storey house B. house of two story

　　C. house of two stories D. two-stories house

　　答案：A