So extraordianry __________ that it left a deep impression on visitors.
| A．was the Shanghai 2010 Expo | B．the Shanghai 2010 Expo was |
| C．did the Shanghai 2010 Expo | D．the Shanghai 2010 Expo did |
________, follow the directiom on the bottle carefully.
| A．Takes medicine | B．To take medicine |
| C．When one takes medicine | D．When taking medicine |
.He is said________a book on the history of Chinese tone bridge , but I don’t know if he has finished it.
A. to have written B. to be writing C . having writing D writing
There are boys________from 7 to 14________age.
A. ranging , of B rang , in C. ranging , in D. range , of
While shopping ,people sometimes can’t help________into buying something they don’t really need.
| A．persuade | B．persuading | C．being persuaded | D．to be persuaded |
The experiment turned out to be__________failure, but “________failure goes before success”
A a , a B /, / C a , / D / , a