题目内容：

根据句意和汉语注释，在答题卡对应题号的横线上，写出单词的正确形式。

1.After several ______________ (过失)，he finally managed to hit the target.

2.______________ (以，凭借）his efforts he succeeded in making so many useful inventions.

3. Our teachers are ______________ (严格的) with us than before because of the coming exams.

4. Though Money isn't everything, it still ______________ (要紧) a lot to the poor.