1. There are _____ months in a year. 2. Bill is nine years old. I'm four years older than (比……大) him. So I'm _____ years old. 3. Ten and eleven is _____. 4. April has _____ days. 5. In this class there are _____ students, nineteen boys and twenty-five girls.
1. Today we'll study the _____ (9) lesson. 2. Jeff has _____(3) Chinese friends. 3. The Greens live on the _____ (5) floor. 4. This is Room _____(12). Your room is next to it. 5. February is the _____(2) month of the year. 6. Lesson _____(5) is very easy.