16. ---I usually have milk and bread for breakfast. ---_________.
A. So have I B. So do I C. I have so D. I do so
17. The train had left the stationI got there.
A. as soon as B. by the time C. since D. after
18. They have __________ since the factory opened.
A. left the school B. joined the team C. become a worker D. worked here
19. This is the town inI was born.
A. that B. who C. which D. whom