Itisnot---_______formetoreturnallthebookstothelibrarynowbecauseIstillneedsomeofthemformyresearch.
A、continuousJohn_______tobeapoliteman.Butinfactheisveryrude.
SomestatesintheUnitedStates_______peopletocarryguns.
Bothsugarandsaltcan______inwater.
Inordertoincreaseouroutput,weneedtoimportmoreproduction_______.
The_______workcontinuedformorethanaweekbuttherewasstillnosignofthemissingboy.
