This is ________ pen. That’s ________ eraser.
| A．a.a | B．an.an | C．a. an | D．an.a |
---Have you seen Dr. Adams recently?
---No. He __________ Hong Kong for an important meeting. He’ll come back tomorrow.
| A．has gone in | B．has been in | C．has gone to | D．has been to |
--- Would you come back to have dinner with us this evening?
--- I’d love to, ______ I have an important meeting .
| A．and | B．or | C．so | D．but |
There __________great changes in our hometown in the past fifteen years.
| A．has been | B．have been | C．was | D．were |
-----________did your uncle leave his home town ?
----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 |
It's very to play Chinese chess with old friends at home.
| A．pleasant; / | B．interesting; the | C．pleasant; the | D．interested; |