loading您的答案：C 题目分数：2.0 此题得分：0.0
15．第15题
( ) up at the clock on the wall, the secretary found it was already midnight.
A. Looking B.Look C.To look D.Looked 答案:A
您的答案：A 题目分数：2.0 此题得分：2.0
16．第16题
They regard ( ) as their duty to provide the best service for their customers.
A.this B. what C.it D. that 答案:C
您的答案：C 题目分数：2.0 此题得分：2.0
17．第17题
So ( ) after she learned the good news that she could hardly fall asleep that night.
A.excited the mother was B.was the mother excited C.the mother was excited D.excited was the mother
答案:D
您的答案：D 题目分数：2.0 此题得分：2.0
18．第18题
“How do you do?” “ ”
A.How do you do? B.Thank you. C.Sorry. D. How are you. 答案:A
您的答案：A 题目分数：2.0 此题得分：2.0
19．第19题
There are about（ ）workers in our factory.
A.eight hundred B.eight hundred of C.eighthundreds D.hundred of 答案:A
您的答案：A 题目分数：2.0 此题得分：2.0
20．第20题
They have to do the job ( ) . A.them B.their C.themself D.themselves 答案:D