_______ have you been here? —I have been here for moths. [ ]
All the government leaders and policemen in Thailand must see to ______ that every citizen should stay safe and sound in the terrible flood.
All the students in our class agreed _____ me that day.[ ]
_____ do you go to the Reading Club?—Twice a week.[ ]
It is no ____ arguing with Bill because he will never change his mind.