单项选择 适中0.65 引用2 组卷602
The comments which he made _________ marketing bothered his boss greatly.
| A．being concerned | B．concerned |
| C．be concerned | D．concerning |
10-11高二下·北京·期中
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There is still a long way to go to solve all the problems _________conservation of natural resources.
| A．concerning | B．concerned |
| C．concerning about | D．concerned about |
- What do you learn about Britons ________ toilet paper?
- They are very ________ about its quality.
- They are very ________ about its quality.
| A．concerned ... peculiar | B．concerned ... particular |
| C．concerning ... peculiar | D．concerning ... particular |
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