题文
__________ work has been done to improve people's living standard.
| A．Many |
| B．A great many |
| C．A great deal of |
| D．A large number of |
推荐试卷
__________ work has been done to improve people's living standard.
| A．Many |
| B．A great many |
| C．A great deal of |
| D．A large number of |
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