________from the top of the tower，the south foot of the mountain is a sea of trees.
| A．Seen |
| B．Seeing |
| C．Having seen |
| D．To see |
Not until his mother came in ________to prepare his lessons.
| A．did the boy begin | B．the boy began |
| C．began the boy | D．the boy did begin |
“We can’t go out in this weather，”said Bob，________out of the window.
| A．looking | B．to look | C．looked | D．having looked |
I promised to write to her ________I got to New York.
| A．at the moment | B．the moment | C．soon | D．long before |
The number of people invited___fifty, but a number of them ____absent for different reasons.
| A．were；was | B．was；was | C．was；were | D．were；were |
The parcel_ __a lot of things ,_____a secondhand dictionary.
| A．contained；included | B．included；contained |
| C．contained；including | D．included；containing |