Tina used to __________a round face. 

 One-third of the area ________ covered with trees. About seventy percent of the trees _______ been planted recently.

–Where _______ the socks?   --_______ on the bed.

No one in the department but Tom and I ______ that the director is going to resign.

 The writer and professor, whom I often refer to at the meetings, ____ famous for those works.