Being a parent is not always easy, and being the parent of a child with special needs often carries with ___ extra stress.
Almost all the students were having classes when the earthquake _________.
______ more attention, the tree could have grown better.
Tom, you _____ leave all your clothes on the floor like this!
We have to work hard, ______ we’ll lose the chance.
---Keep me informed _______ the latest news. ---Ok.