__________theconvenienceofdigitalpayment,manyseniorcitizensstartedtousesmartphones.
Theyaretryingtomakesurethat5Gterminals_________by2022fortheBeijingWinerOlympics.
—Let'stakeacoffeebreak.
—__________We'vebeenworkingforhours.
Itsoundslikesomethingiswrongwiththecar’sengine.,we’dbettertakeittothegarageimmediately.
Heisaveryhonestofficialandnever_____anygiftsfromthepeoplewhosoughthishelp.
Thereasonwhyheadaptedtothenewsituationsquicklyisthathehasa_____attitude.