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. |
A.Touch | B.Don’t touch | C.Don’t put |
A.Doesn’t | B.Didn’t | C.Don’t | D.Does |
A.push | B.pushs | C.pushes |
A.Don’t worry; teach | B.Look out; play | C.You are right; teach | D.I’m sorry; catch |
A.sing; singer | B.singing; singer | C.sing; singing | D.singing; sing |