—The scarves are all beautiful. I can’t decide which one to choose.—Oh,look at this red one. I think it’s______.
--What day is it today?
How much time did you spend the new words in Unit 10?
Since June 1 2008,all the markets have_________free plastic bags.
---Have you seen Dr. Adams recently?---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
-- Has your sister come back? --Yes, she has. She______ back two days ago.