問有多少只鳥用英語怎麼寫

1. 數一數樹上有幾只鳥用英語怎麼寫

Count how many birds are there in the tree.（祈使句）

count是動詞，意為「數」，in the tree而不是on the tree是因為樹上長有葉子，而鳥兒在樹葉里，所以不用on

2. 有多少只鳥他們在干什麼用英語怎麼說

How many birds are there? They are doing?

3. 樹上有幾只小鳥，英語

There are some birds in the tree
樹上有幾只小鳥
How many birds are there on the tree?
樹上有幾只小鳥？