Everyone is supposed ________ a seat belt in the car.A. wearing B. to be worn D.wear D. to wear
Simon improved his way of study. ________, he has made great progress.
—What color is _______ orange? —It's____ orange.
---What did you discuss just now? ---We discussed .
---It looks heavy. Can I give you a hand? ---___________.
--Haven't you seen Mr. Wilson at the lecture? --Yes, but he had left _________ I could ask him any questions.