__________ the convenience of digital payment, many senior citizens started to use smart phones.
A、ToenjoyA
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Auniversityisaneducationalinstitutionwhich_____degreesandcarriesoutresearch.
Thedoctorshareshisphonenumberwiththepatients__________theyneedmedicalassistance.
I can meet you at eight o'clock; _____ you can call for me.
---Ileftmyhandbagonthetrain,butluckilysomeonegaveittoarailwayofficial.
---Howunbelievabletogetitback!Imean,someone______it.
Heisaveryhonestofficialandnever_____anygiftsfromthepeoplewhosoughthishelp.
