Which is , the sun, the moon or the earth(地球)

t _______high technology, he is completely at a loss

__Chinese culture with overseascultures is a challenging job, but you will learn a lot from it

to the USA — No, never, but I went to Canada last year.

When ______ about the secret of his success, Steven Spielberg said that he owes much of his success and happiness ________ his wife and children.