There are still many problems ______ before we are ready for a long stay on the Moon.
| A．solving |
| B．solved |
| C．being solved |
| D．to be solved |
．The manager decided to give the job to ________ who he believed had a strong sense of duty.
| A．anyone | B．each |
| C．no one | D．none |
—There is still a copy of the book in the library.Will you go and borrow ________？
—No，I’d rather buy ________ in the bookstore.
| A．it；one | B．one；one |
| C．one；it | D．it；it |
—Which one can I take?
—You can take ________ of them；I’ll keep none.
| A．both | B．any |
| C．either | D．all |
I did not accept any of the many offerings，because I found ________ satisfactory.
| A．neither of them | B．none of them |
| C．either of them | D．all of them not |
—Do you often talk with your friends on the telephone or mobile phone?
—________.I like using QQ.
| A．None | B．Either |
| C．Any | D．Neither |