How can this be 里面都用到了什么语法?

How can this be 里面都用到了什么语法? How can this be true? what? How can I be like this now ! 求翻译 how can this be和how could this be这两个有什麼区别.是不是could语气委婉些?还是过去式? how can that be? how can it be.. how can be how can that be how can they be A woman has seven children.Half of them are boys.How can this be possible?(用英语回答） how can this be when we were meant to be中文意思同上. how can this be when we were neant to be请问这句话怎么翻译. this can be illustrated Can this be true? I wanna be an expert on English,how I can do this?Is there anybody who can help meon this? I know from my own e____ how difficult this kind of work can be . How many squares of side 3 cm can be cut out from this rectangle?求译 a woman has 7 children,haif of them are boy how can this be possible回答