As we all know．____life is hard for any of us. If we live___ happy life，we must all work harder.
| A．／：／ | B．／；a | C．a；／ | D．a；a |
On Saturdays, students are very proud to be on the street to guide passers-by to obey traffic rules.
| A．characters | B．volunteers | C．operators | D．graduates |
Jack tries his best to learn how to make a vase, in order to their promise to finish an artwork with her.
| A．bury | B．solve | C．perform | D．organize |
I have created these sentences to give you a chance to the world of English vocabulary and its hidden beauty.
| A．select | B．replace | C．explore | D．decorate |
The interviewee’s application for the job didn’t because his argument failed to carry logical evidence.
| A．respond | B．succeed | C．recover | D．decrease |
It is no use trying to talk him into studying hard; he can only be by force.
| A．upset | B．harmed | C．rescued | D．persuaded |