She ___________ to Shanghai on business. A. have been B. has gone C. has been
—Our country _____ progress in science and culture in recent years.
—What did our geography teacher say? —She told us that the earth _____ around the sun.
When we went into the park, we saw someone _____ Chinese Kungfu.
—Can you give this book ____ Jack? —Yes, I can.
—Have you ever _____ Mudanjiang to see the Jingbo Lake? —Yes, I have.