Lady Gaga is _______ very popular singer.She has lots of fans.A.a B.an C.the
—____ is it from here?—It’s about five minutes’ walk.
The old man lives ____ but he doesn’t feel ____.
Li Lei isn’t ____ Liu Ming.
Please be quick, or we will have no time ____ have lunch.
—Mom, my classmates invited me ____ a field trip. May I go with them?—OK.