yoke of marriage

[britfan]

Have a look at my following sentences.

a. She shook off the yoke of marriage.
b. She thrown off the yoke of marriage.

As you can see, it's about an ideomatic phrase here. Which of both sentences is correct?

 

[Rover_KE]

a. She shook off the yoke of marriage.
b. She threw off the yoke of marriage.

As you can see, it's about an idiomatic phrase here. Which of these sentences is correct?

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