Unliketraditionalgyms,app-backedgymsofferpeople___________optionstoexercise.
In that school, English is compulsory for all students, but French and Russian are _________.
We’d better discuss everything _______ before we work out the plan.
__________theconvenienceofdigitalpayment,manyseniorcitizensstartedtousesmartphones.
It was never clear _______ the man hadn ’t reported the accident sooner