__________theconvenienceofdigitalpayment,manyseniorcitizensstartedtousesmartphones.
A、ToenjoyAuniversityisaneducationalinstitutionwhich_____degreesandcarriesoutresearch.
—Lindadidn’tinviteustotheparty.
—______?Idon’tcare.
Recently a survey _______ prices of the same goods in two different supermarkets has caused heated debate among citizens.
Mr.Smithgradually_____aknowledgeofthesubject.
Mycameracanbe_____totakepicturesincloudyorsunnyconditions.
