英语中,给一个英语长句,怎么找出它的主句答:注意一些连接词 比如 that,which,who,whose,when,where,how,because,due to 或者两个逗号之间 等等.这些词后面的那句话一般都是装饰用的 可以删掉.Barack Obama,the new president of the United States who was elected in 2010,who is also the first African-American to be elected as the ...