Look at these _________. Please choose one.
A. a flower B. flower C. flowers
— I’ve got a fever. —__________________.
A. I’m sorry to hear that. B. Great! C. Thank you.
—______ are you absent today? —I’m ill.
A. How B. What C. Why
Classes ________ over. Let’s go home now.
A. is B. are C. am
Are you taking _______ medicine?
A. some B. any C. many