26. The visitor asked to have his picture taken _______ stood the famous tower.
| A．that | B．at which | C．when | D．where |
51. --- Who is at the _____ of all this trouble.
--- I don’t know.
| A．base | B．bottom | C．reason | D．Cause |
52. I shall walk with you to the bottom of the road. The underlined part means ____.
| A．end | B．top | C．side | D．Base |
53. --- Please tell me how to work out this maths problem.
--- Use your ______ , then your find a way.
| A．heart | B．brains | C．hand | D．Mind |
54. Because of the year 2008 Olympic Games, the American corporation board of trustees(董事会) decided to set up a Chinese _____ in Beijing.
| A．room | B．group | C．counterpart | D．Branch |
55. All ____ not baked in one oven. (prov.)
| A．bread is | B．breads is | C．breads are | D．bread are |