11.Peter was a football player and his brother was, too. (both ... and)
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12.David doesn’t play tennis. David doesn’t play table tennis. (neither ... nor)

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13.Mai plays the guitar well. Mai dances beautifully. (notonly ... but also)
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14.They came late. They left early. (not only ... but also)
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15.She’s French. She’s Swiss. (either ... or)

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16.David can’t play tennis. David can’t play football. (neither ... nor)
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17.He has studied not only in theUnited States but also in Europe. (both ... and)
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18.She’s tired. She’s hungry. (not only ... but also)
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19.We can see the film tonight. We can see the film tomorrow night. (either ... or)
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20.The pavements are both narrow and crowded. (not only ... but also)