I know smoking is bad for my health, ____ I just can’t give it up.— It is easier said than done.

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Jim took ___ one-hour ride just now. What a short time he spent finishing such a long way!—He is ______ experienced rider.

Did you see a child dressed in red pass by?—-Sorry, I _____ the poster on the board without noticing anyone

Would you like to go to the park with me— ________