题文
Experts believe ________ people can waste less food by shopping only when it is necessary.
| A．why |
| B．where |
| C．that |
| D．what |
推荐试卷
Experts believe ________ people can waste less food by shopping only when it is necessary.
| A．why |
| B．where |
| C．that |
| D．what |
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