The professor walked onto the platform and seated himself in a chair, ____ for answering questions.
The students went into the classroom,________.
As Mary ______ a poem, her little sister ______ asleep.
The workers ______ a new restaurant. It is said that the construction work will be finished next month.
When ____ about the possibility that Justin was taken away by aliens, Detective San Peterson, who has taken charge of the case, didn’t say much.
There is no hard evidence ____ aliens took Justin that night.