Commas with Nonrestrictive Clauses

The following sentences may be missing commas. Select the answer choice that correctly adds commas as necessary to set off nonrestrictive clauses. (If no additional commas are needed, select “correct sentence.”)

For help with this exercise, see section 26d of Focus on Reading and Writing.

  1. Question

    mmTDCaE2CJcJO94f2Vy777Sg1yBn23Ipn3pztCK6kGGBX0CdfSWu5ZRa6zXaAyak1+IUgJadE6AI8U6lOZ4tItjTbnZaorxwTX/rfs1Fv6CZCwUHLSElBA7QabDItKQOiYvSKR3cvDKxwd5sfSSA43Dmr+cx8qfzXa8+A0X4aS41JgPMJvwsoUQlIHinlSST6ZslaFcJsgBueXBRyVoa+uMdPhuwPjXr3rGvzqmZTrJQRFt91kx4uKkqup/YzIUkMG9mQ0KdQl8wiU0EB83gHevMpanPE7GTYm8MVq5Z2FpJDgrYlhEz5VSYAjUKHUof0meE+Q==
  2. Question

    AmaMqDWNAJ1dZS2TRUo22CIO5WKmgolvCwlMBV3ffkDZfno4KSxWh/IXuvKng4WNiXmXozZGcTp27aeEJ4mbm70l3Zh/JuluDsduyvzagojnKORd1k2ACjtIPH5OvcF5FQ+246Q+8krsg9q5segr7t59BMBZ8fU8KTgTyQ+5aH+JEKu5sjcITOXInlnTIot461yfiDVtvfFgGD/NuRCVHp00sFsN/1akCi961zfQmwwhU0GE8ZrAmhlReGOHJwEI+By+L+8jXAZRwe53Ur96crr6huybe3UBqT14Nr1W8JztGeCLP9vaWmqr7IsUDBTmsX5eMht8+AauTpNUnSUeeSiV60/TIPjpqlM9bpfcov0VsT3URhaxtAF69uyYJufU4IOHgA==
  3. Question

    cY5Nd9KyqBdfYm74dPmPJLrGWqEgUpdiFQlZGf6SxFMWmAkpuhKM8K6KoXYRjXjW/XPXkHvVsB5uymUSxkrJwQ42vKaoaUusu2/mtqRSAxLsRHs7qV2fMQWDdfvrO10slNFRKrPNuFQvk/OIftF9trHwEIPrrVrMaIYqPcLOz4dOpPL7mqtPetMlALxVQICeY7ZKsVN3uh6vfLdWKOTElaJEYhY5xzUCF5opCNltU5I26btvCP7Lm9e7MaAdvhXyp169bxePZlSeGDWq8d0q5ZMcXwfjRw2yDf/KRPnWRC1uO2qLh8TJBOEbhSD57pSu0+EF7lHSh7zNoorcTtPxng==
  4. Question

    asYmlwhGEFtByhetv9q803nG4A/zMH1aloqAwGa96h/JwHnpCy9h6Ba7xzgUGh3A+0WADTjiRkAF8xtpu5Ui84stpi8PvgQ1npRciZigLlBj7UuaW3xHuGgkgspbE5p27R9F7Y9JWZ+sYFValFnMHubYN0zskCHGcnqA4c28vMC++VNfJ1aDQP+KWqO7OfhnqGQAYQ4kglYXNH/J
  5. Question

    AHzvS0Tz0LzUurVuCht8a95bNI7XpmpHL+XIcMAl2Xc5xvZpTw1yIRz/zE3tUrklMPeM7/aNPlFJOMlSg3zWbawKROOr0wpAX8ePHlGzonwMtdN7MCZvjQgMFp0ySQaa8Dhskgi12v9s+Il2kpXqVFzy9HtgxtFONyWTEjPYGzbe0fApIeRVCssq8xnI+IUOePl+PSCcDRBycVMkGHJMnMc4p4AaOWolAn2d9iMIZQetrZNA7ecGRGR45jfQdhpWzumYMJmNO/ZUljYSBVvfp6hn3cLfkCW8qWnf4nazoISD+FzJypmjAEEzT4466ofuq1WY+8NvAOqEEUyiZsbk7Lp7gUJg783R