1、Theweatherisreallyhotthesedays,soIprefertowearingshortsandt-shirts.

2、这句话中的错误是wearing，应该改成wear。因为prefer后面接的是动词的原形，而不是-ing形式。

3、Eachofthestudentsintheclasswereaskedtosubmittheirownresearchpaper.

4、这句话中的错误是were，应该改成was。因为each是单数形式，所以后面的动词也需要用单数形式。

5、Thecompany'spolicyistolayoffemployeeswhoarenotperformingwell.

6、这句话中的错误是layoff，应该改成layoff。因为layoff是一个名词，而在这里需要的是一个动词短语，即layoff。

7、Theprofessorgavethestudentsonlytenminutestoanswersallthequestionsontheexam.

8、这句话中的错误是answers，应该改成answer。因为minutes后面是to，所以需要一个动词原形。

9、Thebookwaswrotebyafamousauthorwhoisknownforherbeautifulprose.

10、这句话中的错误是wrote，应该改成written。因为was后面需要用一个过去分词，而write的过去分词是written。

11、IhavebeenlivinginNewYorkforthepasttwoyearsandIamlovingit.

12、这句话中的错误是amloving，应该改成love。因为havebeenliving已经表示了一个持续性的动作，所以后面的动词不需要加-ing。

13、Thecommitteeiscomprisedoffivemembers,eachofwhomhasauniqueperspectivetobringtothetable.

14、这句话中的错误是iscomprisedof，应该改成comprises.因为comprise是一个及物动词，后面需要接名词，而不是介词。

15、Thegovernmentisplanningtoincreasetaxesonluxuryitems,suchasyachtsandprivatejets.

16、这句话没有错误。

17、Therestaurant'smenuwasverylimited,butthefoodthatweorderedwasdelicious.

18、Hewasdisappointedwhenhedidn'tgetthejob,buthedidn'tletitgethimdown.

19、Thebabywascryingallnight,soIdidn'tgetmuchsleep.

20、Thecompany'sprofitshavebeensteadilyincreasingoverthepastfewmonthsthankstoanewmarketingcampaign.

21、Theteachertoldthestudentstoputdowntheirpencilsandtoclosetheireyes.

22、Ican'tdecidewhetherIwanttogotothebeachortothemountainsforvacation.

23、Theteamdidwellinthetournament,buttheydidn'twinthechampionship.

24、Theflowersinthegardenarebeautifulandfragrant,especiallytheroses.

25、Thepoliticianmadeapromisetolowertaxesifhewaselected,buthedidn'tfollowthrough.

26、Thecompany'sCEOisaverysuccessfulbusinessmanwhohasledthecompanytogreatsuccess.

27、Thechildrenwereplayingintheparkandhavingagreattime.

28、Themoviewasverysuspensefulandkeptmeontheedgeofmyseat.