题文
(2012·福建) The air quality in the city, __________ is shown in the report, has improved over the past two months.
| A．that |
| B．it |
| C．as |
| D．what |
推荐试卷
(2012·福建) The air quality in the city, __________ is shown in the report, has improved over the past two months.
| A．that |
| B．it |
| C．as |
| D．what |
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