Tim often helps the old man in his free time.A . when he is hungryB. when he is not with anyoneC. when he isn't busy
My aunt works ________ a newspaper _______ a reporter.
Let’s __________ the quiet and beautiful park.
He likes talking to people and ___________stories.
—Are there any animals in the zoo?—
There are many buses running in the street. Don’t go ______ it now.