Success is how you are viewed by others, _______ achievement is something you do yourself.
| A．while | B．in case | C．even if | D．as long as |
Was it in 1969 _____ the American astronaut succeeded_____ landing on the moon?
| A．when；on | B．that；on | C．when；in | D．that：in |
It is exactly _____we behave _____has changed the world.
| A．which; that | B．how; that | C．how; what | D．what; that |
—I can’t find Xiao Ping, where did you see him this morning?
—It was in the library______ he studied．
| A．that | B．where | C．which | D．the one |
—________ matters to do the job well —what you are or where you come from?
—Neither. It depends on whether you put your heart into it.
| A．Which is it that | B．What it is that |
| C．Which it is that | D．What is it which |
----How unhappy your roommate looks!
----Yes，but he’s not willing to tell me what it is____ is troubling him.
| A．what | B．which | C．as | D．that |