19. At weekends in Chengdu, you can often see many people _____ outside some restaurants, _____ to have dinner.

   A. sit; wait       B. seated; waiting      C. seating; waiting        D. sitting; to wait

At weekends in Chengdu, you can often see many people _____ outside some restaurants, _____ to have dinner.

A. sit; wait    B. seated; waiting    C. seating; waiting   D. sitting; to wait

At weekends in Chengdu, you can often see many people ________ outside some restaurants, __________to have dinners

A. sit; wait                             B. seated; waiting

C. seating; waiting                     D. sitting; wait

At weekends in Chengdu, you can often see many people _____ outside some restaurants, _____ to have dinner.

　 A. sit; wait　　　　　 B. seated; waiting　　 C. seating; waiting　　　 D. sitting; to wait

19. At weekends in Chengdu, you can often see many people _____ outside some restaurants, _____ to have dinner.