过渡时期的总路线的主体是________。
Weregretto________thatitmaynotbepossibletodealwitheveryrequest.
EachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
中华人民共和国成立后，我国社会的主要矛盾是资产阶级和无产阶级的矛盾。
Tosucceedinascientificresearchproject________.
