Robert Collier once said, “A single idea——the sudden flash of a thought—— _________ be worth a million dollars.” A. should B. may C. must D, will
This is the best film ___ have ___seen.
--Della likes dancing, but doesn't like swimming.. ----_____.
___ , we would have taken raincoats with us.
The machine is so old ___ it can’t be used any more ___ some of its parts are changed.
--This store has such high prices.--- I agree. Never again ___ here.