9：It was because the ten major building projects were designed，built and fully completed ____ ten months that it was considered to be a miracle. A：in a matter of B：ahead of time C：at most D：in advance ...

3：unpleasant,unattractive or not cheerful A：gist B： grim ...

16：According to the president of Achieve, the problems standardized tests have caused lie in a lack of public understanding. ...

10：We can hardly avoid making any mistakes in our work____ hard we try. A：whatever B：how C：no matter D：however ...

4：The insecticide proved ____;by killing the weak adults of a species, it assured that the strong ones would mate among themselves and produce offspring still more ____ to its effects. A：ineffective, hostile B：cruel, vulnerable C：nec...

23：Theoden does not meet his death in battle directly at the hands of the Lord of the Nazgul because the Lord of the Nazgul does not have hands. ...

17：People of different races live their lives apart but share ideas together. ...

24：Windfola dies as the result of a heart attack. ...

12：happen immediately A：incredible B：instantaneous ...

20：第四次作业问题20" /> A：Count on each other for help B：Keep a friendly distance C：Give each other a cold shoulder D： Build a fence between them ...