问题描述：
---Many people in the world don’t have enough to eat. _______bad it is to waste food!
---Yes. We should not order too much_______ we can’t eat up the food.
A. How; if B. What; until C. What; if D. How; until
为什么选A而不选C
---Yes. We should not order too much_______ we can’t eat up the food.
A. How; if B. What; until C. What; if D. How; until
为什么选A而不选C
问题解答：
我来补答展开全文阅读