A.touch | B.touching | C.to touch |
A.Thank you, sir. |
B.Welcome to our factory, children! |
C.Sorry, sir. |
D.Don’t touch the machines, please! |
E.What does this machine do, sir? |
A. Queue up, please. B. Clean up, please. C. Don’t shout, please. D. Don’t push, please. E. Don’t talk. |