An old friend of my sister’s always helps my brother and      with      English. 

________ is your school life like?  --It’s very wonderful.

 —Is that your model plane? — No, it's his,            is on the sofa.

The students are cleaning their classroom. _____ are cleaning the windows. _____ are cleaning the chairs.

 —You look unhappy .  What’s wrong ?—I find ____ difficult ______on well with my classmates