The teachers ________ themselves in marking the students’ papers after the monthly examination.[ ]

The manager has come back from his business trip Heis asking you for the report—Oh，my god ! I haven’tfinished it yet But he____ back at the company tomorrow

He would have gone to visit Linda yesterday, however , he _____on by Linda instead

Johnny’s uncle promises that the boy geta nice present on Christmas Eve.

What ______ that-It’s a map.