4. —Where did you first meet your boyfriend?
— It was in the department store ______ he worked.
A. which B. that C. what D. where
5. Chen Xiang's singing career ______ after his first album was released,
A. took up B. took away C. took off D. took on
6. The old lady got up just before sunrise, as she often does, _____along the beach and get some fresh air.
A. walked B. to walk C. walking D. having walked
