给单词们找家。
three that there thin thirteen though the third mother
maths brother think father through fifth this
【答案】/ð/ thistherethatmotherfatherbrotherthethough
/θ/threethinthirteenthirdmathsthinkthroughfifth
【解析】1.thistherethatmotherfatherbrotherthethough中的th都发/ð/
2.threethinthirteenthirdmathsthinkthroughfifth中的th都发/θ/