future

没有人知道未来的课堂会是什么样子。

Nobody knows what the classroom of the ___future will look like.

如果我们不这样做，更多物种将会灭绝，我们自己的未来也会受到威胁。

If we do not, more species will become extinct and our own ___future will be endangered.

人们都受到大卫无惧未来、向前凝望的姿态所鼓舞。

The people were all inspired by the way David looked ahead without fear of the ___future.