1、以下是用“ab”开头的句子:

2、Abigailismybestfriend.

3、WeneedtobuysomeA-Bglueforthiscraftproject.

4、Abdominalexercisesareimportantforcorestrength.

5、HewasgivenanABgradeforhixxxam.

6、TheabbreviationforthestateofAlabamaisAL.

7、Thereareabout10millionABbloodtypeindividualsintheUnitedStates.

8、Abandonedhousescanbedangeroustoexplore.

9、Theabbotleadsthemonastery.

10、Shehasanabnormalmoleonherbackthatneedstobechecked.

11、Mostantibioticsrequireaprescriptionfromadoctor.

12、Theabacuswasusedasacountingtoollongbeforecalculatorswereinvented.

13、AbdulisacommonnameinmanyMiddleEasterncountries.

14、Theabaloneisatypeofseasnailthatisconsideredadelicacyinsomecultures.

15、RosaParkswasaprominentfigureintheAmericancivilrightsmovement.

16、Abstinenceistheonlysurewaytopreventthespreadofxxxuallytransmitteddiseases.

17、Theabnormalityinherbraincausedseizures.

18、AbuDhabiisthecapitalcityoftheUnitedArabEmirates.

19、Shehasacollectionofabstractartpiecesinherlivingroom.

20、以下是用“b”开头的句子:

21、Brianismyyoungerbrother.

22、Blueberriesarepackedwithantioxidantsandothernutrients.

23、Balloonsareafundecorationforparties.

24、ThebankwasclosedonSunday.

25、TheBibleisasacredtextformanyreligions.

26、Balletdancershavetobeextremelyflexibleandagile.

27、Birdshavetwowingsandabeak.

28、Bicyclesareapopularmodeoftransportationinmanycities.

29、TheBeatlesareconsideredoneofthegreatestbandsofalltime.

30、Babiesneedtobefedfrequentlyinthefirstfewmonthsoflife.

31、Bottledwaterisaconvenientoptionforon-the-gohydration.

32、Batsaretheonlymammalscapableofsustainedflight.

33、BaseballisAmerica'sfavoritepastime.

34、Bondingwithyourpetcanhavemanyphysicalandemotionalbenefits.

35、BellpeppersareagoodsourceofvitaminC.

36、Bacteriaaresingle-celledorganismsthatcancauseillnessorinfection.

37、Bowlingisapopularrecreationalactivityforpeopleofallages.

38、Babieslearnbyimitatingthebehaviorofadultsaroundthem.

39、Burglaryisaseriouscrimethatcanresultinimprisonment.