摘要： This river is than that one. A. deep and clean B. deeper and cleaner C. deeper and clean D. deep and cleaner
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——Yes, it’s said that 80 per cent of fish in this river ________ live long.
|
A．doesn’t |
B．don’t |
C．isn’t |
D．aren’t |
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The water in this river is harmful because It’s a ______ river.
| A．pollution | B．polluted |
| C．has polluted | D．pollutes |