最新外研版初二下册Module3 Unit1课件ppt
On today’s news, Tony has heard that scientists have (1)_____ a spaceship to Mars and it has (2)______ on the (3)______ after a journey of several months from the earth. Scientists have not (4)__________ life on Mars (5)_____. And no astronaut has ever been to Mars because it is very far away.
|