1. It is reported that by the end of next month the bridge ____. 
A. will be built     B. has been built     C. will have been built     D. will have built

解析：由by the end of判断应选完成时，next month 是将来标志，故选择C.  

2. Our teacher has a strict rule. She said yesterday that all the students ___ to class on time. 
 A. came     B. might come     C. must come     D. must have come  
 
解析：如果从句中所表示的是一个客观事实或科学真理，从句谓语动词不受时态原则限制，只能（永远）用一般现在时，通常根据常识就可以确定答案。故选C 
 
3. One of the requirements for a fire is that the material ____ to its burning temperature?
A. be heated   B. is heated     C. would be heated    D. to heated
 
解析：A)项requirement 这个词和idea, suggestion等一样，要求从句里的谓语动词用（should）+动词原形。故选A 
 
4. ____ what may, we’re not going to make any concessions to his unreasonable demands.? 
A. Come          B. Came        C. Coming         D. Having come
 
解析：【句意】无论发生什么事情，我们都不会对他无理的要求做出让步。 
【难点】come what may 是一个固定的用法，其中come总是用原形动词，在这一用法中，主谓必须倒装，此句相当于whatever may happen （不管发生什么情况）。 
 
5. Every means ____ tried out but never with success, as far as my knowledge goes. 
A. is          B. are         C. has been             D. have been
 
解析：【句意】就我所知，每种方法都试过了，但都没有成功。 
【难点】means虽以s结尾却是单数形式，因此谓语动词应选用第三人称单数。故选C
 
6. He concluded his speech with a remark that failure ____the mother of success.
A. is         B. were          C .was        D. must be .
 
解析：【句意】他用―失败乃成功之母‖这句话结束了他的发言。 
【难点】表示客观事实或普遍真理时，句子通常用一般现在时，此类句子的时态不受其它分句时态限制。故选A 
 
7. The design liaison meeting ____ ten days by the time it ends. 
A. must have lasted     B. will have lasted    C. would last    D. has lasted 
 
【句意】本期设计联络会将持续十天才会结束。? 
【难点】by the time意指no later than the moment that something happens，常与过去完成时和将来完成时连用。
 
8. ____ before we depart the day after tomorrow, we should have a wonderful dinner party.
A. Had they arrived       B. Would they arrive       C. Were they arriving     D. Were they to arrive
 
8. D) 
【句意】如果他们能在我们后天离开之前赶到的话，我们就举行一次盛大的宴会。?
【难点】表示将来不可能发生的事实，常用虚拟语气，主句的谓语为should+动词原形(适用于第一人称主语)或would,could,might+动词原形(适用于其余人称主语)；而条件句的谓语应该用should+动词原形，were to+动词原形或直接用动词的过去时(如be 改用were)。
 
9. As ___ clear from his manners, he is a teacher.
 A. being      B. is       C. to be      D. been 

 9. B) 
【句意】从他的举止便可以明显地看出，他是一名教师。
【难点】as意为―如，照(某种事实或情况)‖，在本句中为关系代词，指代第二个分句，as代替整个句子作主语时，谓语动词通常必须用单数。
 
10. Great as Newton was, many of his ideas ____ today and are being modified by the work of scientists of our time. 
A. are to challenge          B. may be challenged      C. have been challenged      D. are challenging 
 
 10. C) 
【句意】尽管牛顿非常伟大，然而他的许多观点当前正受到怀疑，并且当今的许多科学家正在努力对这些观点进行修正。? 
【难点】challenge意为―挑战，怀疑‖，常用作及物动词。本句中牛顿的观点受到挑战为一个当前已经发生的事实，故采用现在完成时的被动语