jack [not keep]] in touch with his friends by telephone

jack [not keep]] in touch with his friends by telephone Tom keeps in touch with his friends by telephone I keep in touch with my friends ( ）telephone. Jack kept in touch with his friends ((by e-mail)(划线))during It is not easy to keep in touch with friends when they are f How do you keep in touch with your friends? I can keep in touch with friends and family keep in touch with family and friends back home`` keep in touch with each other by emails kept in touch with relativesor friends mainly by sending let keep in touch with= Jack d____ the problem with his friends in the cl