Hello! Can you help me?<br/><br/>I have these doubts:<br/><br/>1) Which is the preposition that should go?<br/><br/>Turn left IN?................street. I have seen that INTO and AT are correct? What about ON?<br/><br/>2) Is it correct "Go straight on Washington str"?<br/><br/>3) Walk 5 blocks or Walk along 5 blocks or Walk for 5 blocks?<br/><br/>4) "On the left is the Post Office". Is the Grammar ok?<br/><br/>Thank you very much!