日期:2011-01-19 10:10
od place to live
20. Mr. Howard, ________ his study of the situation, was ready to talk about it when I arrived.
A. completed B. having completed
C. had completed D. being completed
Part Two: Questions 21-30
There is one mistake in each of the following questions. Detect and correct the mistakes. Write your corrections together with the mistakes on the answer sheet. （下列每句各有一 個(gè)錯(cuò)誤，找出錯(cuò)誤并改正。請(qǐng)將錯(cuò)誤及改正寫(xiě)在答題紙上。） 20%
Example: Whos taking care the dog while youre aw