1.[ ] You _____ to feed your goldfish much.lt doesn't eat a lot.
问题描述：
1.[ ] You _____ to feed your goldfish much.lt doesn't eat a lot.
A.need
B.needn't
C.don't need
D.should
答
答案C.don't need
从意思上看是这样的：
你不必给金鱼喂太多.它吃的不是很多.
因此A need和D should不对
那么就是用B科学实验是C
needn't后面要接动词原形,因此答案就很明确了