问题

Regardless of ________ the obstacles in this life may be, I will run my race to the best of my ability.

A:what
B:how
C:which
D:where

正确答案是：

同类题型

___________does it take you to go to the bus station— About half an hour .

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ys mobile internet devices are pushing up demands for online education, which makes people see it as one of the most____ new market.

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