At the conference, four speakers gave three different opinions on the present economic situation. One was optimistic, ________ was pessimistic, but ________ of the others took two-sided views.
| A．the other; neither | B．other; both | C．the other; either | D．another; both |
.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
.Some researchers believe that there is no doubt ____ a cure for AIDS will be found.
| A．which. | B．whether | C．what | D．that. |