1) Which is faster?
　　　　 is.
a rabbit
a giraffe

2) Which is the biggest of the three?
　　　　 is.
Mars
Jupiter
Saturn

3) Which is longer?
　　　　 is.
the Nile
the Amazon

4) Which is the tallest of the three?
　　　　 is.
the CN Tower
Canton Tower
Tokyo Skytree