Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Câu hỏi

Tony joined a conservation programme in his town. He realised the impacts of human activities on the ecosystem only then.

Đáp án
D. Only after Tom had joined a conservation programme in his town did he realise the impacts of human activities on the ecosystem.

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 14 - VŨ MAI PHƯƠNG