对于青春期的变化,我们充满了好奇,在相互交流中,我们将体会青春成长的美好。为此______是我们应遵循的基本准则。( )
-Tom, _______late for school again. -Sorry, I won’t.
Do you know the teacher __________ long hair?
—It's time to go to bed, Lily! —OK. , Mummy.
There ________ an egg and some apples in the fridge.
Is her name Lily? --- Yes , ____ is.