摘要：39．Few people paid full attention to their health conditions they were seriously ill. A．when B．if C．until D．after
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Few people paid full attention to their health conditions ________ they were seriously ill.
| A．when | B．if | C．until | D．after |
Few people paid full attention to their health conditions ________ they were seriously ill.
A．when B．if C．until D．after
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.Few people paid full attention to their health conditions _____ they were seriously ill.
| A．when | B．if | C．until | D．before |