______ studying abroad can be hard， it can broaden your understanding of the world.
| A．If | B．While |
| C．Because | D．Since |
Neither side is prepared to talk to ________ unless we can smooth things over between them.(2010·全国Ⅱ)
| A．others | B．the other | C．another | D．one other |
—Which of the three optional courses did you like best，Joe?
—To tell you the truth，I didn't like ________ of them.
| A．either | B．both | C．any | D．neither |
It was hard for him to learn English in a family, in which ________ of the parents spoke the language.
| A．none | B．neither | C．both | D．each |
—John，when shall we meet again，Thursday or Friday?
—________.I'll be off to London then.(2012·重庆)
| A．Either | B．Neither | C．Both | D．None |
He had lost his temper and his health in the war and never found ________ of them again.(2010·重庆)
| A．neither | B．either | C．each | D．all |