e old man is quite able to take careof himself, he has seen the elephant The underlined part means _____

_____ for the young man to spit in the subway!

Hi Mary. What are you doing now Let‵s go to the park.—Sorry，my mom asks me to _____because my room is too dirty（脏的）

Mr. Smith used to smoke ____, but he has given it up.

With the help of this new type of calculator, people will be able to __________ the numbers much faster with more accurate figures.