Match the verbs with the correct definition and write a–f next to the numbers 1–6.
1…….. to develop
a. to go beyond
2…….. to supersede
b. to start doing something someone else was doing
3…….. to take off
c. to replace something older or less advanced
4…….. to take over (from someone)
d. to suddenly start to be successful
5…….. to surpass
e. to develop gradually (especially for a biological species)
6…….. to evolve
f. to grow or improve, or to make something grow
or improve