This is not a typical summer camp, but Michelle is glad she _______ it.

The teacher told the students that they______ to be useful men to the country. 

The little boy _____on the mat ____ to his parents that blackbirds had _____their eggs on Mars．

 Though ________ in San Francisco, Dave Mitchell had always preferred to record the plain facts of small-town life.

—Have you heard about that school bus accident?—Yes, fortunately all on board including the driver ________.