IF WE KEEP OUR ENVIRONMENT CLEAN, WE (LIVE) ______________ IN A HAP...

1. - BO DE KIEM TRA MON ANH VAN
BO DE KIEM TRA MON ANH VAN

1. If we keep our environment clean, we (live) ______________ in a happier and

healthier life.

(Give the correct tense of the verb in parentheses)