Maria has written two novels, both of ______ have been made into television series. (2012.山东)
Mrs. Brown helps me out when I have too much work to do, and I return her _______whenever I can.
This kind of cloth _______ well. I think it is worth _______.
-- I’d like some more cheese. --Sorry, there’s ______ left.
The accident happened on such an evening with strong winds ________ by heavy rain.
The moment the World Expo ________ open, the whole audience cheered.