单选题
Building this road will ______ the construction of ten bridges, and then the total cost reaches 1 million US dollars.
【正确答案】
B
【答案解析】[解析] B项“involve包括，使陷于”符合题意，如：All the children were involved in the school play. (所有的孩子都参加了学校排练的剧。)其他三项“A项evolve发展，进化；C项revolve旋转，考虑；D项devolve转移，退化，衰落”都不正确。本题空格处是说包括建造十座桥。因此B项为正确答案。