Ans: He remembers these men and the warmth their joy once brought to him when he was a boy. The significance of this memory is that Scrooge is reminded that he once enjoyed the approaching of the holiday. Scrooge sees himself as a young man sitting alone in the boarding school.
(I took this from ahsan57900)
1. The governments and economies of foreign nations greatly influenced the United States of America because the products produced by foreign nations compete with the American products in the market. This competition causes negative effects on the economy of United States when more products of foreign countries are sold as compared to American products due to lower prices of foreign nations products.
2. Big challenges are created by nontraditional economies, natural disasters, and emerging democracies on the United States government because these factors lowers the production and sale of American products in the market that affected the economy.
A complex sentence contains one independent clause and at least one dependent clause. Here, in your example, there are two simple independent clauses which you need to merge using a dependent adjectival clause in order to make one complex sentence. Here is how to do it:
The boy <u>who wore a green coat</u><u /> carried his sister home.
To make it parallel I would say to put it in this format: We can’t go back; to go forward is our only option. This makes the verbs the same.