21. Instead of sending _________ e-mail, Nancy talks with her mother on ________ mobile phone once a week.
A. the; a B. an; the C. an; / D. the; an
22. As a war reporter, Jenny went through a lot of adventurous ________, which contributed to her rich ________ in her job.
A. experience; experience B. experiences; experience
C. experience; experiences D. experiences; experiences
