We built the house（). Nobody helped us.

According to the Authority, which of the following must the house be built of sometimes？A．

The villagers have offered much help to us and we think we should do something for them___

The experience of traveling abroad can help us______.A．meet people with whom we agree or d

Verbal memory helps us read words we have never h

______(47)A. Nobody is poor in the US.B. Thetop0.

Nobody knows his （)for helping us.A motiveB motio