17. My friend showed me round the town, ______ was very kind of him.
A. which B. that C. where D. it
16. They use computers to keep the traffic ______ smoothly.
A. being run B. run C. to run D. running
17. My friend showed me round the town, ______ was very kind of him.
A. which B. that C. where D. it
16. They use computers to keep the traffic ______ smoothly.
A. being run B. run C. to run D. running