She was watching a documentary when she heard knocking on the door. Sandra found an old ring while she was digging

Past Continuous Tense:
Объяснение:
Past Continuous Tense is used to describe actions that were happening at a specific time in the past. It is formed using the past tense of the verb "to be" (was/were) and the present participle (-ing form) of the main verb. This tense indicates that an action in the past was ongoing or in progress at a particular moment.

In the given sentences, the Past Continuous Tense is used to describe ongoing actions in the past when another event interrupted or happened simultaneously.

Example of use:
1. Она смотрела документальный фильм, когда услышала стук в дверь. (She was watching a documentary when she heard knocking on the door.)
2. Сандра нашла старое кольцо, когда пропалывала сорняки в саду родителей. (Sandra found an old ring while she was digging the weeds in her parents' garden.)
3. Томас стоял на палубе корабля, когда увидел кита. (Thomas was standing on the deck of the ship when he saw the whale.)
4. Мы работали над научным исследованием, когда компьютер внезапно сломался. (We were working on our research paper when the computer suddenly broke down.)
5. Гид рассказывал нам об старой церкви, когда раздался сигнал тревоги. (The tour guide was telling us about the old church when the alarm rang.)
6. Молодой человек ехал на работу, когда двое людей в черных формах его остановили. (The young man was driving to work when two people in black uniforms stopped him.)

Совет:
To understand the Past Continuous Tense better, it is important to review the formation of this tense and practice using it in context. Pay attention to the time frame of the actions in the sentence and the interruption or simultaneous event. Practice identifying the main action and the ongoing action in each sentence.

Упражнение:
Rewrite the following sentences in Past Continuous Tense:

1. The children were playing in the park when it started raining.
2. Maria was cooking dinner when the phone rang.
3. They were discussing their plans when the teacher entered the room.
4. I was reading a book while my sister was watching TV.
5. The dog was barking loudly while the cat was sleeping peacefully.