Nanjing isn’t so large __________ Shanghai, however, it’s the second __________ city in East China.
—Who taught ______ English last year, Kang Kang? Was it Mr Huang? —Yes. I found _____ so funny to have his English class.
—I am tired these days. What should I do, Mum? —Have a good rest, eat more ______ and do more ______.
—Now I really enjoy learning English. —Yeah! Just do it!
—Do you think it is hard for you to learn math well? —Yes. I really want to drop it.
—The river smells so terrible! How did it come about? —People used to pour dirty water into it.