A new material_____,we have good reason to be optimistic.A、developedB、being dev

游客2025-04-25 31

问题 A new material_____,we have good reason to be optimistic.

选项 A、developed
B、being developed
C、was being developed
D、was developed

答案 B

解析本句话意为“我们有充分的理由保持乐观的态度，因为我们创造了一种新的材料。”本句话考查的是独立主格的用法。正确答案为B。

转载请注明原文地址:http://tihaiku.com/zcyy/4053347.html

相关试题推荐

随机试题

最新回复(0)

Withouta(n)liberalsupplyofnecessaryequipmentandmaterials,themountain-c