Test 4
29 |
How many planets are there in our Solar System? Most ………………… people would say that there are eight of them. |
EDUCATE |
30 |
Indeed, you may come across this ………………… in a school textbook on astronomy. |
INFORM |
31 |
However, there are those who would ………………… with this point of view. They believe that there are nine planets. |
AGREE |
32 |
In fact, ………………… , space researchers started to talk about a giant planet on the outskirts of the Solar System. |
RECENT |
33 |
The planet is too far away to be seen from the Earth. It is still invisible even to the ………………… Hubble Space Telescope. |
POWER |
34 |
However, the scientists have calculated its gravitational influence and are sure we are very close to a new amazing space ………………… . |
DISCOVER |