It will take days by car, so let’s fly ______.

Be careful when you ________ the street. The traffic is heavy.

— __________ do the new hair clips cost? —They are only ten yuan. 

 --- Is there_____ beef in the fridge?--- No, there isn’t. There is ______ pork.

— Shall we go to the station to meet our cousins?— I’ m afraid you _______. They will take a taxi by themselves.