— I saw your friend at the hospital this morning. What’s the matter with her? — Oh, ___________. She is a doctor there.
I was just talking to Margaret when Jackson ___.
Could you please translate this material _____ Spanish? A. in B. with C. into C. on
I couldn’t ____. The line was busy.
The conference has been held to discuss the effect of tourism(旅游业) ___ the wildlife in the area.
Sandra was a student ____ the age of 21.