Use the Simple Past or the Past Continuous Tense:
1. I (see) yesterday when we (go) for a walk in the park. The sun (shine), a cool breeze (blow) the birds (sing). 2. I really (enjoy) my vacation last January. While it (snow) in Iowa, the sun (shine) in Florida. While you (shovel) snow in Iowa, I (lie) on the beach in Florida. 3. My brother and sister (argue) about something when I (walk) into the room 4. The students (speak) Japanese and some (converse) in Arabic. 5. When I (arrive) she (have) lunch. She (apologize) for starting without me but said that she always (lunch) at 12.30.

1 saw, were going

was shining, was blowing, were singing

2 enjoyed

 was snowing, was shining

 were shovelling, was lying

3 were arguing, walked

4 were speaking, were conversing

5 arrived, was having

 apologized, lunched