The museum will open in the spring with an exhibition and a viewing platform ________ visitors can watch the big glasshouses being built. (2013·浙江，13)
| A．what | B．where |
| C．when | D．why |
In this factory, it's hard to tell cadres ____ workers.
| A．from | B．to | C．about | D．in |
My brother is very good ___ ping-pong.
| A．in | B．for | C．at | D．on |
Taiwan is ____ the east of Fujian.
| A．in | B．at | C．to | D．on |
He went to Nanjing ___ October, 2008.
| A．in | B．on | C．at | D．to |
Information technology is taught in most schools, ________ we have entered the information society.
| A．so | B．while | C．still | D．for |