Choose the best form: Look at the sky!I think it __ very soon. Let's stay inside! Bbl6epnTe ofMH OTBeT: is raining is going to rain will be raining will rain won't rain

## Step 1<br />The problem is a fill-in-the-blank type question where we need to choose the best form of the verb to complete the sentence. The sentence is "Look at the sky! I think it __ very soon. Let's stay inside!"<br /><br />## Step 2<br />The sentence is discussing a prediction about the weather based on the current observation of the sky. The speaker is suggesting that it will rain soon, which is why they suggest staying inside.<br /><br />## Step 3<br />The options provided are:<br />- is raining<br />- is going to rain<br />- will be raining<br />- will rain<br />- won't rain<br /><br />## Step 4<br />The correct form of the verb to use in this context is "is going to rain". This is because the speaker is making a prediction about the future based on the current evidence (the sky). The phrase "is going to" is used to express a future event that is likely to happen based on current evidence or patterns.