input: Write a function to combine two lists element-wise into a list of tuples.
  assert combine_list([1, 2, 3], ['a', 'b', 'c'])==[(1, 'a'), (2, 'b'), (3, 'c')]
  assert combine_list([1, 2], [3, 4])==[(1, 3), (2, 4)]
  assert combine_list(['apple', 'banana'], ['red', 'yellow'])==[('apple', 'red'), ('banana', 'yellow')]
output: def combine_list(list1, list2):
      return list(zip(list1, list2))