My baseball is____ the floor, ____the table. A. under; on B. on; under C. in; under
I think the Grand Canyon is unusual natural wonder of the world.
—Our country _____ progress in science and culture in recent years.
When we went into the park, we saw someone _____ Chinese Kungfu.
—Have you ever _____ Mudanjiang to see the Jingbo Lake? —Yes, I have.
You’d better speak aloud ______ we can hear you.