Many children are ________ in the countryside when their parents flood into the cities for jobs. [ ]

Every time_____ they met, they would talk several hours together about all of thesituations_____ appearin the working world.[ ]

In recent years，more and moreAmericans like traveling during holidays．—_______.

I don’t think you can work out the maths problem＿＿＿＿her help

Whendifferent cultures, we often pay attention only to the differences without noticing the similarities.[ ]