单项选择题
When they were in difficulty, we would come to（）help.
A．the villagers' B．the villagers C．the villagers of D．the villagers for
单项选择题 May I speak to your manager Mr. Williams at five o'clockI'm sorry. Mr. Williams（）to a conference long before then.
单项选择题 I（）have gone with them, but I（）not finish my homework in time.
单项选择题 Alexander Graham Bell invented（）telephone in 1876.
