题目内容：

根据括号中所给的汉语写出单词，使句子意思完整正确。

1.His failure was because of his ____________(粗心)

2.The ancient tomb wasn’t __________(发现) by people until 1900.

3.Can you ________(想象) what life will be like in 100 years?

4.To my ________(惊奇)，I got the first place in the English composition contest.

5.You can ask me for help ________(无论何时) you are in trouble.