23．—It’s reported that the new underground line has been completed．
—Yes but it hasn’t been made clear________it’s to be opened to traffic．
| A．that | B．who | C．what | D．When |
55. There have been many changes in _____ history of _____ English language.
| A．a; the | B．the ; / | C．/; the | D．the; the |
56. A major earthquake _____8.0 on the Richter scale strongly _____ Wenchuan County in Sichuan Province at 2;28 p.m. on May 12, 2008.
| A．measured; shaken | B．measuring; shaking |
| C．measured; shaking | D．measuring; shook |
57. ---These boxes are too heavy for me to move.
---Don’t worry; I’ll give you a hand ______ them.
| A．for | B．to | C．with | D．On |
58. --- Do you still remember when we went to the Summer Palace?
--- I can’t remember it well, but it _____ sometime last July.
| A．must have been | B．might be |
| C．could be | D．might have been |
59. The _____ of blood always makes him feel sick.
| A．view | B．look | C．sight | D．Form |