单选题 The sociologist studies the complex way in which people （ ） with each other at parties.

单选题 Traveling is full of （ ） .All you need is being brave.

单选题 You should （ ） yourself with the knowledge you can acquire.

单选题 Astronauts want to （ ） the other planet that is suitable for human’s living

单选题 It has not yet （ ） settled.

单选题 Young people need to be given the （ ） to make a difference in the world.

单选题 He laid the （ ） of the science of bacteriology.

单选题 Susan is a(n) （ ） person. We never know what she will do next.

单选题 Schools must meet the （ ） of new technology.