The children all turned ____ the famous actress as she entered the classroom. 
| A．looked at | B．to look at |
C．to looking at | D．look at |
29.There have been several new events _____ to the program for the 2008 Beijing Olympic Games.
| A．add | B．to add | C．adding | D．added |
28.He is quite confident,_____,in my opinion,is most important for his future development.
| A．how | B．that | C．what | D．which |
27.To our surprise,the student considered_____ in the exam should win an award.
| A．being cheated | B．having been cheated |
| C．to have cheated | D．to have been cheated |
26.That poor man with her two children _____ in a street corner.
| A．was seen to beg | B．were seen begging | C．was seen begging | D．were seen to beg |
25.If an excellent Chinese novel is translated into English,_____ means many more people in the world can enjoy it.
| A．as | B．what | C．which | D．that |