Once your business becomes international, ___ constantly will be part of your life.
I’d like ___ on a trip to Tibet while he prefers ___ to Guilin.
---Are you still very busy? ---Yes, I _____ the report for the manager and it won’t take long.
I soon found that the work I was doing had already been done by someone else._____,I was wasting my time.
I _____ all the cooking for my family, but recently I’ve been too busy to do it.
The thief spoke in a _____ voice and the little boy was very ____.