Put the verbs in Past Continuous, Past Simple. 1. WhileI (to copy) the exercise, my friends (to describe) a picture. 2. When we came in, the children (to clean) their desks. 3, We met her at the bus stop. She (to wait) for the bus. Some of the children (to ski) while other children (to skate). Everybody (to have) a lot of fun. 5, When we came the family (to get) everything ready for Christmas. Bob and Helen (to decorate) the Christmas tree. 6. The girls (to feed) the birds in the garden while the boys (to make) a bird-house.

1. While I was copying the exercise, my friends were describing a picture.
Explanation: In this sentence, two actions were happening at the same time in the past. The action of copying the exercise is in the Past Continuous tense because it was ongoing, and the action of describing a picture is also in the Past Continuous tense because it was happening at the same time.

2. When we came in, the children were cleaning their desks.
Explanation: This sentence talks about an action that was happening at a specific point in the past. The action of cleaning the desks is in the Past Continuous tense because it was ongoing when we entered the room.

3. We met her at the bus stop. She was waiting for the bus. Some of the children were skiing while other children were skating. Everybody was having a lot of fun.
Explanation: In this sentence, there are multiple actions happening in the past. The action of meeting her and waiting for the bus are in the Past Continuous tense because they were ongoing. The actions of skiing and skating are also in the Past Continuous tense because they were happening at the same time. The action of having fun is also in the Past Continuous tense because it was ongoing.

5. When we came, the family had gotten everything ready for Christmas. Bob and Helen had decorated the Christmas tree.
Explanation: This sentence talks about actions that were completed before a specific point in the past. The action of getting everything ready for Christmas is in the Past Simple tense because it was completed. The action of decorating the Christmas tree is also in the Past Simple tense because it was completed.

6. The girls were feeding the birds in the garden while the boys were making a bird-house.
Explanation: In this sentence, two actions were happening at the same time in the past. The action of feeding the birds is in the Past Continuous tense because it was ongoing, and the action of making a bird-house is also in the Past Continuous tense because it was happening at the same time.