Maybe it is time for the rest of society to      the fact      I may not be able to walk, there are many other great things I can do.

—I heard that your daughter had been admitted by a famous university.—But they charge so high tuition.I can’t _________such a large sum.

The boy _______to his mother that he had _______ the table for supper and then ____ down to have a rest.

 It’s ten years since the scientist ____ on his life’s work of discovering the valuable chemical.

 He had learned enough german to _____ a conversation.