同义句型转换 1.l don't think a boy of 9 can answer this question.l

同义句型转换 1.l don't think a boy of 9 can answer this question.l think it 两空 a boy of 9 ...同义句型转换1.l don't think a boy of 9 can answer this question.l think it 两空 a boy of 9 两空 this question.2.We must do our best to help the ones who are in trouble.We must do 三空 to help 一空 in trouble.3.Since the front door is shut,you may try knocking at the back door.两空 the front door is shut,两空 try knocking at the back door?翻译1.作为保护措施,你得戴上头盔,穿上救生衣,以防万一掉进水里.2.你认为值得冒着生命危险来进行探险吗?3.成群的牛羊和马儿在绿色的草原上徜徉,周边的森林则是众多鸟类和动物的家园.