Obviously the measures taken by the local government have_______ the solution to drinking water problems in this region.

Please don’t ask me to solve mathematical problems;they are beyond my ____.

My mum often me do my lessons after school.

The cost of living in Chengdu is among the lowest in China,________ the quality of life is probably one of thehighest.

He arrived here at noon, in the day, and he went out and came back in the day.