Rather than _______in the city, the old man would prefer______in the countryside.

Tom, where is your father?- I’m not sure. He _______ in his office.

Do you hear there was _______ fire in the shopping mall last night?－ Yes. I never thought _______ fire can be so terrible.

Your paintings are so great, David! When did you learn ______?—Three years ago.

Is your mother _________ English teacher?—No, she isn’t. She is _________doctor.