Tom is unaware of his mistake.
A.is sure about
B. unknown
C. doesn’t realize
-- ______did your uncle leave his hometown ?--He ______ for nearly twenty years.
| A．When, has left | B．When, has been away |
| C．How long, has left | D．How long, has been away |
Tom is ____________ boy now.
| A．a 11-years-old | B．a 11-year-old |
| C．an 11-year-old | D．an 11-years-old |
-----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 |