Look. How clean the window is! It ________ just now.A. was cleaned B. is cleaned . has been cleaned D. will be cleaned
——Could you tell me how to get to the Yellowstone National Park from here? ——_________.Maybe you can ask the policeman over there.
——Could I ask you a few questions? ——___________.
Which of the following animals lives only on grass? A.B.C.D.
— Thanks for the delicious food. —_________.
一Which dress do you like best.Madam? 一Sorry,I can’t decide _______ now.