We want to be ______ because, as students, we should learn to help other people.

—Have you ever been to New York before?—No. This is my first ______.

 A human ______ can do some things better than a computer, for example, creating new ideas.

------Do you know the woman who is looking____ over a patient? ------ Yes. She is one of the best ____ in our hospital.

— Oh, my god! We have missed the last bus. What shall we do? —I’m afraid we have no ______but to take a taxi.