【课堂练习】
( )1.(2012年厦门)—What's the terrible noise upstairs? I can hardly stand that.
—Our neighbors ________ a party.
A.are having B.were having
C.will have
( )2.(2012年白银)—What a pity! You missed the beginning of the movie.It ________ for 10 minutes.
—Oh, a traffic jam!
A.began B.started
C.has been on D.has been off
