When a fire _________ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.

______ give us help is welcome.

. What a pity. Considering his ability and experience, he _________ better.

How is Helen in the new school —She is doing very well. There is to worry about.

It’s beyond our comprehension that Jim, who tops the class in English, ________ have difficulty translating such a simple sentence.