Don’t give up regardless of difficulty and failure, you’ll never achieve your goals.
| A．and | B．but | C．or | D．so |
During _________ 3-day conference, global warming became _________ major concern of all the representatives.
| A．the; a | B．a; the | C．the; \ | D．a; \ |
Not until _______ home _______ her appointment with the doctor.
| A．she arrived; did she remember | B．did she arrive; that she remember |
| C．she arrived; when she remembered | D．did she arrive; had she remembered |
By nine o’clock, all the Olympic torch bearers had reached the top of Mount Qomolangma, _________ appeared a rare rainbow soon.
| A．of which | B．on which | C．from which | D．above which |
Do you know since when it is ________ you have been interested in poetry?
| A．when | B．until | C．how | D．that |
What’s the __________ of having a public open space where you can’t eat, drink or even simply hang out for a while?
| A．sense | B．matter | C．case | D．opinion |