in a science competition, the threestudents were awarded scholarships totaling $ 21, 000

The young teacher has been so ____ with work that she hasn’t had time for social activities.

__ a precious diamondnecklace for his wife, Martin could hardly afford a tie for himself

It is generally believed that ______a piece of field is, ______ it produces.[ ]

His brother insisted on _______to have an English lesson _______ he didn’t feel well that day.