--- Are you sure you have to ? It's been very late. --- I don't know _____ I can do it if not now.
----Has the National Indoor Stadium been completed? ----- Not yet .It’s still _________ construction.
-- Let’s go to a movie after work , OK ? ----- ________________________________.
They’ve ______ us $ 150,000 for the house. Shall we take it ?
_______ two exams to worry about , I have to work really hard this weekend .( 2004 北京)
I couldn’t do my homework with all that noise _________.( 2005 北京)