Question

2. Rachel is wearing her favourite jogging shoes---------------
she is comfortable.

3. ----------------------------- we reach the lighthouse first, we will wait​

Answer 1

Answer:

2. Rachel is wearing her favourite jogging shoes and she is comfortable.

• Here 'and' has been as a Conjunction.
• Conjunction is one of parts of speech.
• It is used to join two sentences. Two sentences are 'Rachel is wearing her favourite jogging shoes.' 'she is comfortable.'
• Example: The king died and his son ascended the throne.

3. Once we reach the lighthouse first, we will wait

• Once is an Adverb .
• Adverbs are divided into four classes according to their 'use.' They are : 1. Simple Adverbs, 2. Indicating Asverbs, 3. Adverbs Denoting Number & Amount, 4. Emphasising Adverbs.
• Here 'once' has been used as 'Adverbs Denoting Number ' : He did not sit even for once. Adverb also denotes Amount or Quantity. Example : The Mngoes are almost ripe.

Answer 2

Rachel is wearing her favorite jogging shoes and she is comfortable.

Explanation:

• This is a to clause sentence and is joined by the conjunction "and".
• The conjunction "and" is used in compound sentences to join an independent and a dependent clause.
• Once we reach the lighthouse first, we will wait​
• Once is an adverb and it shows the number.
• A number adverb shows the number of a thing.
• It means one single time.