158. It is said in the book that Thomas Edison _____ the world leading inventor for about sixty years.
| A．would be | B．has been | C．was | D．had been |
—Excuse me, but could you please tell me the way to the gas station around here?
—Sorry. There isn’tgas station nearby, I'm afraid.
| A．one | B．不填 | C．the | D．a |
Space exploration began in the 1960s, and since then about five hundred peopleinto space.
| A．have traveled | B．traveled | C．had traveled | D．are traveling |
Not until the man i，n black took off his dark glassesthat he was the famous film star.
| A．did I realize | B．I realized | C．was I realized | D．I have realized |
—Do you think he can get the first prize for jumping?
—Impossible now. Heto do so, but he has just hurt his leg.
| A．has expected | B．is expected | C．would expect | D．was expected |
—Thank you very much for giving me a hand when I was in trouble.
—Don’t mention it. I only did what anyone elsein my place.
| A．must do | B．might do | C．would have done | D．can have done |