单选题 Neither the students nor the professor____ anything about it.

单选题 Who can you turn to in time of danger, if not ____?

单选题 It wasn't actually ____ expensive as you think.

单选题 Either she or I____ to attend the get-together this evening.

单选题 He has spent all his life working with mentally ____ people.

单选题 The research is so designed that once____nothing can be done to change it.

单选题 The editor asked his journalists not to ____ any details in their reports of the accident.

单选题 —How many poor counties will there be in our province by 2010? —There will be only a few, if ____.