They promised to develop a software package by the end of this year, ________ they might have.

Teenagers ________ their sense of hearing because they always wear earphones

There will be less pollution _____ more people use public transportation.

________,I’ll wait for you to have dinner together. Be back as early as possible.[ ]

BRICS is the first letter of its five member counries.The five members are Brizil, Russia ,India ____________and South Africa.