问题

Where is our English teacher?—She is in the classroom, the exercises _ the students have done at home.

A:explaining; /
B:explaining; for
C:explained; to
D:explained; from

正确答案是：

同类题型

The water in this river is harmful becauseIt’s a ______ river.

The government has taken measures air quality.[ ]

_______ in a friendly way, their quarrel came to anend.

___with difficult situation, Marydecided to turn to her parents for help

—I wonder __________. ––Zebras.