-Can you tell me why you learn English so well?-It’s very simple._____ you work,______ grades you will get.
You ________ play with the knife. You ________hurt yourself.
— __________ is the price of the trip? — Ten dollars per person.
Could you please speak a little more ? I can't follow you.
Her mother looked _________at that moment when she heard the good news.
With the help of his classmates, he ___________the difficult maths problems easily.