Question

To get a driving license, you ________ (can/have to) be 18 years old.​

Answer 1

Answer:

To get a driving license, you __have_to___ (can/have to) be 18 years old.

Answer is - have to

If you put ' can ' in the blank it will be wrong because for earning the license it is necessary to be 18 years old , can is not making any sense that's why the answer should be 'have to'.

hope it helps you .

Answer 2

Answer:

Have to

Explanation of Have to:

It is a modal verb and is used for saying that somebody must do something or that something must happen.