婴儿2个月觅食反射减弱:有谁知道这个问题怎么答

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有谁知道这个问题怎么答? I_______<hope>to call on you yesterday, but I was too busy.为什么???????????????

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have hope

应填hoped
sb. hope to do sth.译为某人希望....

had hoped,因为这是对过去事实的虚拟,用过去完成时

I had hoped to call on you yesterday, but I was too busy.

意思是我昨天想给你打电话,但我实在太忙了

hadhoped

should have hoped
原本打算做,而没有做