来自黄锡伟的问题
横线上为什么填which?A.AndB.thatC.whichD.不填ButifyouconsiderAmericanhistory,it'seasiertoseewherethispatternofbehaviorcomesfrom.Inthepioneerdays,ifyouactedtooreservedandformal,noonewouldhaveanyreasontohelpy
横线上为什么填which?A.AndB.thatC.whichD.不填
ButifyouconsiderAmericanhistory,it'seasiertoseewherethispatternofbehaviorcomesfrom.Inthepioneerdays,ifyouactedtooreservedandformal,noonewouldhaveanyreasontohelpyouifyougotintrouble(______therewasplentyofinthepioneerdays).
