はテレビを見たり本を（）します。
A.読む
B.読んで
C.読んだり
D.読み
参考答案：C
—Why did Mr Smith _____ your place to give us a talk, Mr White?
—______ I had a bad cold.
A．keep;Because
B．keep;Because of
C．take ;Because
D．take;Because of
下面是某项目的未来现金流预测，由此计算该项目的投资回收期为（）年。
A.2.5
B.2.8
C.3
D.3.5
