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This is an illness that can          total blindness if it is left untreated.

Our chemistry teacher          a better way of working out the problem this morning.

The boy’s father insisted that the boy ______ badly and that he ______ to the nearest hospital at once.

That car accident ______ all his life. After that he was limited to a wheelchair.

--- Do you think John is coming to attend Mr.Lee ‘s lecture?
--- Sure, I have ______ him to .

The moment I saw her, I ______ her, although she changed a lot through years.

It is not easy to learn English well but if you ______, you will succeed in the end.

Students who pass the test will be ______ to the next grade, as has been announced.

More and more people were gathering there. He ________ his way through the crowed and rushed into the burning house.

Trying to save a little girl out of a car crash, he had his leg ______.