10：It is highly necessary that university students ___ some basic survival skills. A：should learn B： learning C： learnt D： to learn ...

4：Information has been put forward___ more middle school graduates will be admitted into universities. A：while B： that C： when D： as ...

18：West Africa and Southeast Asia are similar in that women there play an important role in trading at local markets. ...

6：The rocks are carefully crushed ___ the diamonds are not destroyed. A：even if B： so that C： as if D： no matter ...

20：Fear is not considered to be a secondary emotion. ...

2：____the reason may be, physical punishment to children is illegal. A：For whatever B：Whatever C：However D：No matter how ...

16：It is important to settle the issue of animal emotions, because it has considerable implications for taming animals. ...

4：The host are ____to plan and pay for the entertainment of their guests. A：suppose B：supposing C：supposed D：supposedness ...

23：When duty calls during wartime, America＇s teens will join aimlessly. ...

17：Racial harmony in the U.S. is essential because the rest of the world will likely follow such a model. ...