．Interestingly in some parts of the world, women are expected to earn money _____ men work at home and raise their children．
| A．but | B．though | C．because | D．while |
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 |