Her ______ attempts to interview the president turned out to be fruitless.

They felt that they had made quite a ______ contribution to this team project, only to find it ended in such a fruitless failure.

To her joy, Jane found the meeting very ________.( A: productive B: product C: fruitless D: fruitful

In the author’s opinion, the absorption of immigrants into American society is ________. [A] rewarding [B] successful [C] fruitless [D] harmful

vain ( ) A: (slang;<br/>old-fashioned) very pleasing; wonderful; great. B: not leading to a<br/>desirable or lasting effect; futile; fruitless. C: a person of age<br/>thirteen through nineteen. D: to continue to<br/>live despite serious immediate threat to one's life.

In the author's opinion, the absorption of immigrants into American society is ________ 未知类型：{'materialIndexes': None, 'wordCount': 0, 'score': 0.0, 'title': '2006年 英语一 阅读理解 Text1', 'type': 182} A: rewarding. B: successful. C: fruitless. D: harmful. 未知类型：{'label': None, 'content': '', 'isMemberControl': 0, 'type': 181}