Mr. David Melville suggests that in future more fo...

A

- Hướng dẫn giải

Phương pháp giải:

Giải chi tiết:

Đáp án là A. insufficient: không đủ. Ý trong bài: Food supplies, for instance, could be affected by lower crop yields. “Maybe we could afford to import food from elsewhere but you have to keep in mind that the type of changes experienced in southern China will take place elsewhere as well,”