Between the two parts of the concert is an interval, _____ the audience can buy ice-cream [ ]

Alice, please ask your brother ____ water for them.

Make sure to turn off the gas after you take a bath, which would ___ cause danger

Though he was badly hurt, he kept ______ other passengers.

Asamemberofbusdrivers,IamproudofWuBin.—___________.Heisaheroinmyheart.