—How nice the old Chinese book!—I bought it online last week. It ________ in ancient China.
Mrs Green are very grateful to the neighbour _____ helped her child out of the fire.
—You are leaving your school.How do you like it? —Very much, of course, I this school since I moved here
—Do you think the first problem in this math test difficult? —Yes.I could work it out.
—_____ good news he brought us yesterday! —Yes, all the students were very excited.
the students in this school is about four thousand,of them are boys.