1Muhammad wondered why Mercury
is so hot.
2The interviewer wants to know if someone will go to Mars in the 21 century.
3My brother wanted to know if it is true that Venus is almost as big as the
Earth.
4Galileo Galilei wondered if the Sun really rotates round the Earth.
5My teacher asks me which planet in our solar system has the longest orbit.
6Charles wonders if I can name all the
planets with more than one moon.