Who does that shop assistant think he is? He behaves as if he _______ the grocery．

Being examined twice a year is the rule that every driver    obey in the city．

“You say you won’t do it, but I say you _______”, said the boss.

To my surprise, my good friend _________ stay up to study to prepare for the next important exams organized by ten famous high schools.

I supported him in time , otherwise he_______off the bike .