We have some problems ________ the big bag.

Ａlot of language learning,has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.

If I ______ plan to do anything I want to，I’d like to go to Tibet and travel through as much of it as possible.

Mike ______ a lot of work for the poor areas since he worked in Africa.

The map is one of the best tools a man has __ he goesto a new place