W: Who’ s your new secretary, Tom
M: Miss Brown. I’ m very pleased with the work she’ s been doing so fast.

What do we know about Tom’ s secretary（）

单项选择题What can we learn from this conversation（）

A. The woman is willing to do the washing for the man.
B. The man wants the woman to do the washing for him.
C. The woman knows little about the machine,
D. The man knows nothing about the machine.

单项选择题Disease-carrying insects become important where human being are crowded together.（）

A. 在人们聚集在一起的地方，带病昆虫的问题就变得很严重。
B. 在人们居住的地方，带病昆虫在控制人口过剩问题方面起着重要作用。
C. 在人们密集地区，带病昆虫成为一个严重的问题。
D. 带病昆虫是人们密集地区必不可少的。