Many parents find it difficult _______ with their children.
— Does Helen speak English ____?— Yes. Her English is very ____.
—Can you tell me why you learn English so well?—It’s very simple. ____you work, ____ grades you will get.
— I’m going to Kate’s birthday party this afternoon.— ______ __ .
The apple is too big , let’s cut it _______ .
If it _____ tomorrow, we ____ to climb mountains.