For holidays, many people visit the Grea
题型：选择题
问题：
| For holidays, many people visit the Great Barrier Reef ______ the northeast coast of Australia, ______ has more than 600 islands. |
A. on, which B. on, that C. off, which D. off, that |
| For holidays, many people visit the Great Barrier Reef ______ the northeast coast of Australia, ______ has more than 600 islands. |
A. on, which B. on, that C. off, which D. off, that |