By nine o'clock，all the Olympic torch bearers had reached the top of Mount Qomolangma，________appeared a rare rainbow soon.
| A．of which |
| B．on which |
| C．from which |
| D．above which |
29. ---Let’s make it next Monday or Tuesday if it’s convenient for you.
--- _____ day is OK. I’m free all the time.
| A．Some | B．Both | C．Either | D．Neither |
28. It is suggested that the project ______ until all the preparations have been made.
| A．is not started | B．won’t be started |
| C．isn’t to be started | D．not be started |
27. How can you expect him to make any progress ____ you never give him a chance to have a try?
| A．when | B．unless | C．even though | D．until |
26. They got married 30 years ago and never ______ in the past years.
| A．they didn’t quarrel | B．they have quarreled |
| C．did they quarrel | D．have they quarreled |
25. The student who was caught ______ in the exam has been removed from school.
| A．cheat | B．cheated | C．cheating | D．to cheat |