1. Even though its per capita food supply hardly increased during two decades, stringent rationing and planned distribution have allowed the People’s Republic of China to ensure nutritional levels of 2,000 calories per person per day for its population.
(A) Even though its per capita food supply hardly increased during
(B) Even though its per capita food supply has hardly increased in
(C) Despite its per capita food supply hardly increasing over
(D) Despite there being hardly any increase in its per capita food supply during（B）
(E) Although there is hardly any increase in per capita food supply for
这里怎么判断用什么时态，还有，during two decades和in two decades有什么区别，它们分别是两种时态的标志吗？
谢谢！
这题我也有疑问,请NN指点!
C) Despite its per capita food supply hardly increasing over可以看成是独立主格的使用吗?
这题我也有疑问,请NN指点!
C) Despite its per capita food supply hardly increasing over可以看成是独立主格的使用吗?
应该不可以的。
请查查despite的用法，以及先把独立主格的问题存疑。这个问题不难，绝知此事要躬行，在本论坛中寻觅一下。
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