She shouldn’t get married yet; she . . . . . . . . . . . . . . . .18/25She shouldn’t get married yet; she . . . . . . . . . . . . . . . .is not old enoughwas not old enoughis not enough oldwas not enough oldGiải thíchChọn đáp án A tobe (not) + adj + enough: đủ (không đủ)....