Mr. Smith used to ______ heavily, but he has given it up.
A: smoke
B: smoking
C: smoked
D: have smoked
A: smoke
B: smoking
C: smoked
D: have smoked
举一反三
- My father used to _________ heavily, but now he has given it up. A: smoke B: smoked C: be smoking D: smoking
- Mr. Smith used to smoke _______ but he has given it up. A: scarcely B: hardly C: heavily D: seriously
- Mr. Smith used to smoke<br/>____ but he has given it up. A: seriously B: heavily C: badly D: hardly
- Jack has given up _______. A: smoking B: to smoke C: having smoked D: smoke
- Mr. Smith used to smoke _______ but he has given it up. A: heavily B: seriously C: badly D: hardly E: scarcely