II. 1. The Nile river is longer than the Mekong river. => 2. There isn't an attic in my house. => 3. He has got short brown hair. => His hair

1. The Mekong river is shorter than the Nile river.

S + be + short-adj + er + than + O : ss hơn

2. My house doesn't have an attic.

S số ít + doesn't have + N 

3. His hair is short and brown.

S + be + ADJ and ADJ 

`color{orange}{~LeAiFuRuiHuiBao~}`