Not believing their eyes, the visitors on the spot _______ the flying plane, doing some most difficult and dangerous tricks in the sky.

Jim often gets______ school at eight and gets ______ home at five

He handed in the essay two days later than his classmates，but it was still _____the time limit set by the teacher

下列诗句中，没有使用比喻手法的一项是

The companies are working together to create_____ they hope will be the best means of transport in the 21st century