第4题: [单项选择]Most adults once studied at school,had classes and did their homework every day. The same (41) is going on at school now. But it seems that (42) weekend homework (43) one problem for the modern students.[A] be finishing [B] finished [C] be finished 参考答案:C 答案解析:考查动词语态。句子主语the homework是应填入动词的宾语,因此要用被动语态,选[C]。