若公元2006年记作+2006年，那么—20年表示                     .

根据句意，用括号中所给单词的适当形式填空，每空一词。

小题1:Jim fell down from the tree yesterday. Luckily, he didn’t hurt    (he).

小题2:— When is Teachers’ Day, do you know?

—Sure! It’s in the    (nine) month of a year.

小题3:The sun shines brightly in the sky. It，s a    (sun) day today.

小题4:Mom is busy cooking in the kitchen. She，s (prepare) a cake for my birthday party.

小题5:In fall,   (leaf) fall down from the trees. The cold weather is coming.