【单选题】This little house is _______ but fully functional.
【单选题】New ideas sometimes have to wait for years before ________.
【单选题】New ideas sometimes have to wait for years before _______. [ ]
【单选题】New ideas sometimes have to wait for years before _____ .
【单选题】New ideas sometimes have to wait for years before ______.
【单选题】Fortunately, the illness is fully treatable if _____ within ten days. [ ]
【单选题】The doctor is trying to save the patient by every means _______ .