________ he finished writing his paper in such a short time surprised us all.
| A．When | B．Why | C．That | D．What |
We must _________ from old convention（传统）and adopt as many modern techniques as possible.
| A．put away | B．break away |
| C．get away | D．turn away |
________ to the sunlight for too much time your skin will get burnt.
| A．Exposed | B．Having exposed |
| C．Being exposed | D．After being exposed |
It is a ______ dog, 16 or 17 inches tall from the shoulder.
| A．middle size | B．middle-size |
| C．mid-sized | D．middle-sized |
He came to my class every week, but his attitude _____ that he was not really interested in the subject.
| A．expressed | B．advised |
| C．suggested | D．explained |
The writer was so ________ in his writing that he forgot to flick the ashes from his cigar.
| A．concentrated | B．devoted |
| C．absorbed | D．fixed |