Scientists are not sure whether our weather is changing from the

2024-08-23 07:08:14
英语写作基础(00597)

Scientists are not sure whether our weather is changing from the greenhouse effect. They are not sure whether it is changing from a cycle of nature either. (sentence with parallel structure)
【正确答案】：Scientists are not sure whether our weather is changing from the greenhouse effect or from a cycle of nature.

上一篇：The mayor called a press conference last week. She wanted to ann

下一篇：The boy rushed out of the laboratory. He was badly frightened by