-----I bought this dictionary two weeks ago.
----You mean you __________ it for half a month.
A．have kept B．have had C．have bought D．have taken
The twins has studied in this school ________ .
A．two years ago B．since two years ago
C．for two yeas ago D．since two years
------When and where ____you _____the bag?
------ Oh, yesterday in my desk.
A．have, found B．did, find C．was, finding D．have, find
------Where is your father?
------He _______ Shanghai. He has ______ there for a week.
A．has gone to, gone B．has been in, gone
C．has gone to, been D．has been to, been
This CD-ROM can help you learn and have fun_____.
A．at times B．on time
C．at the same time D．in time
Look! What a clean room! Who _______it ?
A．has cleaned B．is cleaning
C．will clean D．cleaned
