It is these poisonous products ________ can cause the symptoms of the flu, such as headache and aching muscles.
---- Putting on a happy face not only helps us make friends but also makes us feel better. ---- _______.
---- We’re organizing a party next Saturday, and I’d like you to come. ---- _______! I have another one that day. Thank you just the same.
—Would you please help me with the box? —_________
—May I open the window to let in some fresh air? —___________
—Have you finished your first paper? -- . Just half of it. How about you?