We all need knowledge from the past — ______ it comes from personal experience or from studying history. It is our only guide to the future.
| A．as | B．whether | C．how | D．when |
. If you have a job，yourself to it and finally you’ll succeed.
| A．do devote | B．don't devote | C．devoting | D．not devoting |
．（陕西卷17）. John opened the door. There _____ he had never seen before.
| A．a girl did stand | B．a girl stood | C．did a girl stand | D．stood a girl |
（江西卷33）. Not until he left his home to know how important the family was for him.
| A．did he begin | B．had he begun | C．he began | D．he has began |
. ---Is everyone here?
---Not yet. Look, there_______ the rest of our guests!
| A．come | B．comes | C．is coming | D．are coming |
. John’s success has nothing to do with good luck. It is years of hard work _________has made him what he is today.
| A．why | B．when | C．when | D．that |