1) Grandpa ________ read when he was seven. a) could b) couldn't 2) Grandpa ________ swim when he was six. a) could b) couldn't 3) Grandpa ________ ride a bike when he was ten. a) could b) couldn't 4) Grandpa ________ sail a boat when he was ten. a) could b) couldn't 5) Grandpa ________ speak Spanish when he was twenty. a) could b) couldn't 6) Grandpa ________ skateboard when he was eight. a) could b) couldn't

Could/couldn't

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