Commas with Introductory Phrases

The following sentences are missing commas. Select the answer choice that correctly adds commas as necessary to set off introductory phrases.

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

  1. Question

    TKjt6fDRrRDJYTrRxbBXyDIVPA4YlrIDS3D/kDL04KF24uQMLg5qpj4bNlH1lfiXwtxvILK+29Qg/sgk6GMZ5l7sGcoi/PD3aQgVQTJ6DAPa/LMdEH8w0WyohAhATDCA8QI77Qy5u/yWjL3zp5+GK377g1NWEEMWMNkOwhScg0AyQ5lm8HBimUyK7Nq5/Syfw9m2UVXfJ6KbpUQZQNJ9s2EY9/ZvErh7vyaoC72gYbv4/Ef1iqp7MTZzB5GuTup/
  2. Question

    ipKG675nkVOTaXje/Pl65yAzhW8D7z0tqOq/vW3RoDjsrns5Ar3jrGHG0QFX5o7WkNPdtjjWLM8UG9DwZ2HX7VE6vInFduNK0BabzoSi5F9+eocfBo9l9I5tfmc/rN1QUS6gtxXp/0ppxR7pZ3olbQB86WYunH4LwtI/7N5B1GefkVIGJejSjiuFbusvKO2bqv2GxLSeAEKKQC+Ps+VTTagk890=
  3. Question

    oryzxmKefJI+KmLCjjsiP4RhHA5FHlhpWEvX+8n2anOdlyHWpdlOq8am1tiuGYl03ioTtaVUYM0jO8tPI4JRWM3xZ+nEtt1C6i5C3F6TvcObMlddjF0vRQ/Vmfy3F5T5ayx/Vt95/AELRHuPGrI1/SSyq2akb1K83apjCX+FSo9dUuiv8LyMKGclTD/pnSYTW9LZgq4CLYgkOo7dX3LBEn1LYOhWgzy9
  4. Question

    FPJNRDt88kYAqDFw630cejmzP/5stMxOKJab2N7S+wOw3XNxvo7fhSLc8S+vGwurJOLA4NRGGLZA41S42G9h6oGHiJOIRj5ranFCvd+IjdAXqDuZsXKNW6tTQyLjWou7m1IKxOhgY9cVywbrnCQJuwjyYy1E0m9w3trPkdhHvXB+9J27Y4HTwzA5+HB5Kd96y1ccQsN7FwMqV8LqjnLZnqIjBQEy99se
  5. Question

    yrg9JtUct0Iszsc/7bvGdeLkHS3AMvUWBNwHO8Q7dPrhO5PrsXudPIg2tUJEpCFT006Vb/hJ9YcBy4qodJJKh+RNwqslC+Lf8c+ViVuOuI0yx/FMs5d6dfhvcl7Wotlf2jlwku6ptqAT0OJA+CZYj+X8W/0l5ADXpO7aHCHZ5cpdQR6cf0tnQ+X6B7NvPo4X/B9G/LTLzRxUY1vC8j7KpOY/lGxLiJxqxY+lvJdQTNU7jyJUXOkQwwfjvMRX2ha6KEqVKaIXUvSGVI4WsK6SIgmnkFtAZkfQARBLdA==