what's the distance between keangam hanoi landmark tower and bitexco financial tower?
how far__is it from ______keangam hanoi landmark tower to bitexco financial tower?__________________________
my mother drove without a helmet in the past, but she no longer does it now.
my mother used__to drive ____without a helmet 

1.How far is it from hanoi landmark tower to bitexco financil tower
2.My mother used to drive without a helmet in the past