There’s no doubt _____enough concern must be paid tothe problem of the stay­at­home children.

I noticed my little son ____ the words ____ on his small blackboard. [ ]

-Mr Anderson should either keep the dog in the house or________?-I’ll have a word with himHe often listens[ ]

With pressure from life and work increasing day by day, there should be something for people to ______.[ ]

______ the day went on, we became closer and closer to each other[ ]