1.she ___ down and picked up the magazine from the floor.2.what

1). She bent down and picked up the magazine from the floor.

Past Simple.

2). What will you do if she doesnt phone you?

The First Conditional Mood.

3). Do you get up when a teacher comes into the classroom?

Present Simple.

4). Sit down on that chair.

Imperative Mood.

5). If you are tired, slow down and go to sleep.

Imperative Mood.