--May I help you with some jeans, sir? -- Yes, I’d like to try on those blue ________.
— Would you like to go on an outing with us tomorrow?— Ok, I will if my homework ________.
— I hope you don't mind my opening the window.—______ It's much too hot here.
-— Do you know_____________?— My sister’s.
_______ pleasant trip it is! I think I will never forget it .
Physics _______ an easy subject for me when I was young. I usually got high marks then.