－Why didn’t Susan come to see us yesterday as she promised?
－______.
| A．She must be busy | B．She might have been free |
| C．She must have been busy | D．She can’t be free |
It was not until Maggie had arrived at her office _____ her appointment with the doctor.
| A．did she remember | B．had she remembered |
| C．when she remembered | D．that she remembered |
When _____ my childhood, I get lost in happy memories of times now gone forever.
| A．looking out for | B．looking forward to |
| C．looking back on | D．looking down on |
----- Now that you like the portable personal computer so much, why not buy one? It is of great use to your work.
---- Well, I can’t afford _____ computer at present．
| A．a such cheap | B．so expensive a |
| C．so an expensive | D．so cheap |
When I took his temperature, it was two degrees above _____.
| A．average | B．ordinary | C．regular | D．normal |
---- Go for a picnic this weekend, OK?
---- ______. I love getting close to nature.
| A．I couldn’t agree more | B．I’m afraid not |
| C．I believe not | D．I don’t think so |