Choose the word or phrase that is CLOSEST in...

Câu hỏi: Choose the word or phrase that is CLOSEST in meaning to the underlined part in the following questions. Pollution can have disastrous effects on the delicately balanced ecosystem.

A. Catastrophic

B. Infectious

C. Unimportant

D. minor

Câu hỏi trên thuộc đề trắc nghiệm

Trắc nghiệm Tiếng anh 11 Unit 6: Global Warming !!