单项选择题
"The stove is still on.""It () on. I had turned it off myself and I checked it twice."
A.can't be B.mustn't be C.couldn't have been D.mustn't have been
单项选择题 Houses in this city are twice () expensive () they are in other cities.
单项选择题 I brought a portable TV, figuring that watching the late movie was () any to kill off the hours until dawn.
单项选择题 If television is () attractive to children than books, why should we fight it
