Mary used to ____ to work, but she is used to ______ to work now. --优优班--学霸训练营

Mary used to ____ to work, but she is used to ______ to work now.

A．riding a bike; taking a bus

B．riding a bike; take a bus

C．ride a bike; taking a bus

D．ride a bike; take a bus

【考点】非谓语动词,动词

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难度：较易

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