六、短文改错I took part in a geography research study group in last term. Our 71 topic was envi

六、短文改错
I took part in a geography research study group in last term. Our 71
topic was environmental pollution and protection. We took a variety 72
of pictures showed the present pollution conditions of our city. To 73
our surprised, there are still a lot of people doing silly things to our 74
surroundings. Some people throw the rubbish anywhere they like, 75
some cars give off harmful gases, and waste water is poured in 76
rivers by some factories. Worse still, people sometimes had to make 77
their ways through dusty winds as a result of pollution. Through 78
our research, we come to know what everybody must pay attention 79
to our environment and some measures should be taken to protect. 80 71. 去掉第二个in. 72. 正确. 73. showed—showing 或showed---which showed.

(答案→)71. 去掉第二个in. 72. 正确. 73. showed—showing 或showed---which showed. 解析：可联系答.案.网客服索取。

我也是这个答案