____ what he said, he has been to Australia.
| A．Judge by | B．Judged by | C．Judging from | D．To judge from |
He kept looking at her, wondering whether he ________ her somewhere.
| A．saw | B．has seen | C．sees | D．had seen |
She has set a new record, that is, the sales of her latest book ________ 50 million.
| A．have reached | B．has reached | C．are reaching | D．had reached |
—You were out when I dropped in at your house.
—Oh, I ________ for a friend from England at the airport.
| A．was waiting | B．had waited | C．am waiting | D．has waited |
It is said in the book that Thomas Edison (1847—1931) ________ the world-leading inventor for sixty years.
| A．would be | B．has been | C．had been | D．was |
Because the shop ________ , all the T-shirts are sold at half price.
| A．has closed down | B．closed down | C．is closing down | D．had closed down |