Bộ 20 đề luyện thi Chuyên Anh năm 2023 có đáp án (Đề 89)

at the Isthmus of Panama, so animals were able to migrate between North and South America. A. With a land bridge      B. A land bridge   C. A land bridge existed  D. When a land bridge exist

78/79

____ at the Isthmus of Panama, so animals were able to migrate between North and South America.

With a land bridge

A land bridge

A land bridge existed

When a land bridge existed

Giải thích

Đáp án: C