I am sorry I can’t meet you at the station. I _____ by the time you come back from abroad.

Must I finish the book today—Yes, you ________, but you ________ finish it now.Have a rest.

In all kinds of competitions, Jackie ______ a most excellent athlete. He has won many gold medals. [ ]

We must be______that this year might be the worst in recent times for our economic development.

How much time did you spend the new words in Unit 10