she is not so cheerful she used to be?
| A．How is it that；as | B．Why is it that；what |
| C．Is it why；that | D．How it is that；as |
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she is not so cheerful she used to be?
| A．How is it that；as | B．Why is it that；what |
| C．Is it why；that | D．How it is that；as |
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