The old scientist devoted all her time she had ____ the western parts of China.
| A．to develop | B．developing | C．to developing | D．developed |
is Dale,brother.
| A．He,my | B．His,I | C．I,his | D．He,she |
are good friends.
| A．I and you | B．Me and you | C．You and I | D．You and me |
This notebook is not .
| A．my | B．your | C．Tom’s | D．Tom |
---? ---They are oranges.
| A．What’s this | B．What’s that | C．What are these | D．Are they oranges |
I’m tidy ,my sister is not.
| A．and | B．but | C．under | D．always |