The river has become much ______ than before because of the waste water.A. dirty B. dirtier C. Dirtiest
It’s seven in the morning. It’s time ___________.
Betty hasn’t got __________ meat in the fridge.
I _______ like science but I think it is very useful.
–______ is your art Lesson? – It’s at 8:20 today.
We have no lessons________ Sunday.