He sat back on the chair, took a book and began to read, ___.
| A．being looked at ease | B．looked rather at ease |
| C．to look rather at ease | D．looking rather at ease |
—What about ______ lecture you attended yesterday?
—To tell the truth, it was too boring．I can’t stand ______ lecture like that．
| A．a; the | B．the; a | C．the; 不填 | D．the; the |
He raised his voice, ______ we still couldn’t hear anything．
| A．so | B．or | C．but | D．as |
I think you should complain — ____,of course, you are happy with the way things are.
| A．if | B．unless | C．as | D．because |
－How do you usually find out about new software?
－In the magazines like Popular Electronics. That’s computer companies usually advertise.
| A．which | B．where | C．what | D．why |
______the address, Tom sent the email to his teacher.
| A．Having checked | B．Checked | C．Being checked | D．To check |