根據(jù)下列句子的意思及所給的漢語提示，寫出空缺處單詞、固定短語或固定搭配的正確形式。

1．This is our _____________________ （三） time to plant trees．

2．I’m not really _____________________ （饑餓）．I’ll just have an ice cream．

3．Computer is one of the greatest ___________________ （發(fā)明）．I can’t imagine life without it．

4．They _____________________ （同意） us on some matters yesterday afternoon．

5．Mr. Smith gave us _____________________ （一條） advice on how to keep healthy．