Food safety is important. Rules to stop people from food pollution.
—Mike, where is Miss Li?—She ______ a speech to the first-year students now.
— Jenny, I need some milk?—Ok, Mum.______do you need?
There ______ still some apples in the fridge now.
David is the tallest student in our class. ______is taller than him.
— ______ you sing the English song?— Yes, I can. But only a little.