同学你好，该知识点来自沪江网校《零基础直达BEC商务英语高级【寒假签约班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好
以下需要修正：
C
2  broke  4  could

E
1  I asked George what those people were looking at.  
2  George answered that he did not know. He thought a new road was being built and that it would be finished soon.  
3  I told George that all those people were silly because they were looking into an empty hole.  
4  George said that some people enjoy/enjoyed watching others work.
5  Half an hour passed. George told me to hurry up as we had been there for half an hour. He added that there was nothing to see in an empty hole.  
6  I answered that I didn't want to go yet because it was very interesting.  

选择题：
3. b
本句的时间状语是a short time ago (不久前)，表示过去某一时间，因此应该用一般过去时。 a. has bought 是完成时， 时态不对;c. was bought 是过去时，但语态不对;d. is bought 语态，时态都不对;只有b. bought 是过去时，语态和时态都对，所以选b.

5. d
只有d. said to me 同前一句的told me 的意思相同，并且合乎语法。
a. said me 和 c. told to me 都有语法错误，应该是said to me, told me ;
b. talked to me(同我谈话)与told me 的含义不一样，所以选d.

6. a
这是含定语从句的句子，需要选出正确关系代词和系动词。b. who was 因为先行词不是人，所以不合乎题目意思;c. that is 和 which is 都是现在时，与主句的时态不符;只有a. which was 最合乎语法，所以应该选a.

7. a
前一句中的must have drunk(一定喝了)表示对过去发生的事情的推测。
b. has got to drink 和c. has to drink 都有“必须或应该喝”的意思，都与must have drunk 含义不同;
d. should drink(应该喝)也与must have drunk 含义不同;
只有a. must drink 与 must have drunk 的意思相同，都是表示对现在的情况的判断，本句是表达对一个客观事实的主观推测，因此不用must have drunk 而用must drink ，所以选a.

12. c
a. receive(收到)， b. agree to(同意)， d. allow(允许)这3个选择词意思都不适合这个句子。只有c. agree to take(同意接受)最符合题目意思，所以选c.

祝学习愉快！