After ________ his right arm, he keep on ________ with his left arm.
| A．lose; write | B．losing; writing | C．losing; write | D．lose; writing |
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 |