There is still much room for improvement in our work, I see it.
| A．because | B．since | C．which | D．as |
Tom felt ______ when he had the interview because he was not well prepared for it.
| A．energetic | B．nervous |
| C．enthusiastic | D．cautious |
The city was built by Alexander 1,300 years ago, after ______ many streets and places are named.
| A．when | B．which |
| C．where | D．whom |
Last summer we visited abandoned farms ______ over a hundred years ago.
| A．building | B．to be built |
| C．built | D．being built |
—Poor Steve! I could hardly ______ him just now!
—Me neither. He has changed so much.
| A．realize | B．impress |
| C．remind | D．recognize |
Tom says he ______ you and is helping you with the research at present.
| A．had called on | B．will call on |
| C．has called on | D．called on |