单项选择 适中0.65 引用1 组卷656
The number of people in the world ______about 6 billion, and thus large quantities of waste ______each year.
| A．totals; has been produced | B．total; is produced |
| C．totals; are produced | D．total; are being produced |
2021·天津河东·一模
类题推荐
The number of people in the world ______about 6 billion, and thus large quantities of waste ______each year.
| A．totals; has been produced | B．total; is produced |
| C．totals; are produced | D．total; are being produced |
After years of hard work, they were finally able to________an apartment of their own in the city with all their savings.
| A．perceive | B．produce | C．preserved | D．purchase |
The Yellow River ________ flood large areas, but now the water of it is used to ________ electricity.
| A．was used to; producing | B．used to; produce |
| C．was used to; produce | D．used to; product |
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