单项选择题
The teller of a humorous story（）
A．laughs at his own joke B．repeats it several times C．is very serious when he tells it D．is concerned about the reaction of his listeners
单项选择题 The teller of a comic story （）
单项选择题 --I can't see the blackboard very well.--Perhaps you need ______. ( )
单项选择题 ______ do you change the cell for your watch ( )
