___of them has a dictionary and ___one of them can look up words in the dictionary

_____can work out the problems because _____of the problems is easy.

A.None;no one B.None;each C.No one;none D.Each;every

___of them has a dictionary and ___one of them can look up words in the dictionary

A．Each,every        B．Every ,each        C．Each,each         D．Every,every

________ can work out the problems because ________ of the problems is easy.

1. A.
   None, no one
2. B.
   None, each
3. C.
   No one, none
4. D.
   Each, every