The post office is far here. ______ you can't go there _______ foot A. because; on B. so; by C. so; on
---Help yourself to some fish! ---_______.
Jenny was so careless that she______her purse on the bus.
——What if you have two days_______? ——I'd like to go_______ a trip_______ Suzhou.
You______buy Tom a present if he invites you to his birthday party.
This umbrella is____that one,but____than that one.