1 . I must relay to you that I have come to a reasonable ________ (conclude) based on relevant criteria. (所给词的适当形式填空)

2 . They drew different ________ (conclude) from the facts. (所给词的适当形式填空)

3 . It was difficult to reach a definite ________(结论) because the situation was complex. (根据汉语提示单词拼写)

4 . Their ________(conclude) was that the new products developed by those ambitious young people were of high quality. (所给词的适当形式填空)