(25) ___________, we would have to spend most of our time raising food and food would be limited to the kinds that could grow in the climate and soil of our neighborhood.

Đáp án B

Even: ngay cả

Besides : ngoài ra, hơn nữa

Although: mặc dù

However: tuy nhiên

Besides, we would have to spend most of our time... (Ngoài ra chúng ta sẽ phải dành phần lớn thời gian…)