22. in natural gas and oil, so this area is worth developing.A. Being richB. It is rich C.

发布时间：2020-08-15 02:51:57


22.     in natural gas and oil, so this area is worth developing.
A. Being rich
B. It is rich
C. It being rich
D. To be rich

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A. Being rich
(答案→)B. It is rich
C. It being rich
D. To be rich
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