The new books ________ in the factory these days are mainly intended for children.
To understand the grammar of the sentence, you must break it ____ into parts.
The whole class________ the teacher attentively.
We don’t allow ____ in the office. But you are allowed ______ in the open air.
What ____ fun it is to walk alone with ______ full moon hanging in the sky.
All her time ________ experiments, she has no time to see films.