1)when morning came, the storm already (to stop),but the snow still (to fall).2)when i (to come) to his home,they (to tell) me that he (to leave) an hour before.3)let's have dinner up here.if we (to go) down to the restaurant , we (to interrupted) ,and the music (to be) so loud there.we (not/to be ) able to hear each other speak.4)before my friends returned to moldova they (to see) a lot of films and plays in london.5)if you (to ring) me up , i shall tell you the latest news.

Below are the completed sentences with the verbs put into the correct grammatical tenses, followed by a detailed explanation for each choice. 1. The Completed Sentences

1. When morning came, the storm had already stopped, but the snow was still falling.
2. When I came to his home, they told me that he had left an hour before.
3. Let's have dinner up here. If we go down to the restaurant, we will be interrupted, and the music will be so loud there. We will not be able to hear each other speak.
4. Before my friends returned to Moldova, they had seen a lot of films and plays in London.
5. If you ring me up, I shall tell you the latest news.

2. Grammatical Explanations Sentence 1

• had already stopped: We use the Past Perfect because the storm finished before the specific point in time (morning).
• was still falling: We use the Past Continuous to describe an action that was in progress at that specific moment in the past.

Sentence 2

• came / told: These are a sequence of completed actions in the past, so we use Past Simple.
• had left: We use the Past Perfect because his departure happened earlier than the arrival (the "past of the past").

Sentence 3

• go: This is a First Conditional (real future possibility). In the "if-clause," we use the Present Simple to refer to the future.
• will be interrupted / will be / will not be: In the main clause of a First Conditional, we use the Future Simple to describe the result of the condition.

Sentence 4

• had seen: Similar to sentence 2, the action of seeing films happened before the return to Moldova. Therefore, the Past Perfect is required to show the correct chronological order.

Sentence 5

• ring: This is another First Conditional. Even though we are talking about a future action, the rule dictates using the Present Simple after the word "if." The second part of the sentence ("I shall tell") confirms this is a future-oriented condition.

I can provide more practice exercises on these specific verb tenses or explain the difference between Past Simple and Past Perfect in more detail if you would like.