英语上的几个问题

they have come up with lots of ideas to explain the end of the dinosaurs.

可以改写为：they have （ ）many ideas to explain the （ ）of the dinosaurs.

the hit made a lot of dust.it flew up into the air and keep the sun away for months.

译成汉语

四月，以为英国科学家提出了关于恐龙死亡的新观点。

译成英语

he thinks that after the minor planet hit the earth ，the temperature change left more dinosaur boys than girls.

译成汉语

think extincting//那一次地震制造了 很多灰尘，灰尘飘入空中，以致于几个月多看不清太阳///in april,english scientist put up new ideas about the death of dianosour.///他认为在小行星撞地球后，地球上留下的雄性恐龙比雌性恐龙更多了 ///