1 . A $1,500 r________ (奖金) has been offered for the return of the necklace. (根据中英文提示填空）

2 . If you want to make great________ (成就)，you should devote almost all your life. (根据汉语提示单词拼写）

3 . They help us understand science subjects better and arouse our ________ (好奇心) about scientific discoveries.（根据汉语提示单词拼写）

4 . We’d better take time and money into ________（考虑）when making plan. (根据汉语提示单词拼写）

5 . This would cause great hardship and s________ (苦难). (根据中英文提示填空）