It was with the help of the local guide ______ the mountain climber was rescued.
A．who B．that C．when D．how
— What are you doing this Saturday?
— I’m not sure, but I go to the Rolling Stones concert
A．must B．would C．should D．might
______we have enough evidence, we can’t win the case.
A．Once B．As long as C．Unless D．Since
John invited about 40 people to his wedding, most of ______ are family members.
A．them B．that C．which D．whom
It’s not easy to change habits, ______ with awareness and self-control, it is possible.
A．for B．or C．but D．so
— Would you like a glass of wine?
—______. I don’t drink.
A．No, thanks B．Yes, please
C．I don’t like it D．It’s my favorite
