-----He’s never been to Canada before, _____? -----Sorry, I don’t know.
If you do not feel well, please _____ the doctor.
I am busy. Can you help me ____ the housework?
If I _____ to go, I _____ go.
– Oh, no! It’s raining. We can’t go skating on the square. -- _______!
– Congratulations! Your speech is very good. -- _______