The two ____of stamps are of great value .A.series B.serieses能详细介绍下series的用法知识吗

____of the students of our school ___girls.A Two-thirds,are.B Two-thirds,is Tom is funnier than the other two.改为同义句Tom ____ ____ ____of the three. father's buys two ____of rice at the store填什么 ____of the land in that district ____coverd with trees and grass.A.Two fifths;is .B.Two fifths;are ____of the students (in our class)are interested in learning EnglishA,Two thirdsB,Two thirdC,Second threeD,Second three ____ ____ grow vegetables in fields.（farm）The ____of the two footballs teams are both very young.(coach) The two watches are very nice ,but ____of them is cheap A.both B.either c.neither D.all Mary and Jenny work hard at their lessons and ____of them are often praised by their teachersa two b the two c the twos d neither 连词成句 1.is in grade classbhe one two 2.go let look and at stamp new the us ____of the Grade ____ students have taken part in this activityA Two-fifth ; Four B Two-fifths ; four C Second-five ; Fourth D Tow-fifths ; Fourth stamp the first postage stamp 翻译 The number of the students in our school is about nine ____.____of them are boys.A.hundred;Two thirds.B.hundred;Two thirdC.hundreds;Two thirdsD.hundreds;Two third I prefer to keep the white dog as a pet because it looks ____of the two onesA clean B the most lovely C more happily D friendlier who was the ____of the high jump About ____of the workers in the factory were born in the __ A two—thirds,1970 B two-thirds,1970s Ctwo-third,1970 D two-third,1970s.答案为什么是D one+比较级+of有这种用法么?那这道题该选什么?Which one ____of the two questions?A.easy B.easiest C.the easier D.easier The two ____of stamps are of great value .A.series B.serieses能详细介绍下series的用法知识吗