__________ the convenience of digital payment, many senior citizens started to use smart phones.
A
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Weareinterestedintheweatherbecauseit_____ussodirectly------whatwewear,whatwedo,andevenhowwefeel.
Morewindpowerstationswill____________tomeetthedemandforcleanenergy.
Thepolicemanstoppedhimwhenhewasdrivinghomeand_____himofspeeding.
—Youlookupset.What’sthematter.
—Ihadmyproposal_______again.