Question

3. Our dog often
at nights.
howls
howling
howled
was howling​

Answer 1

3. Our dog often
`\sf\purple{howls}` at nights.

`\boxed{a.\:howls }` ✅

................................................

`\large\mathfrak{{\pmb{\underline{\red{✿ \:Let\: us \:learn \:more}}{\orange{:}}}}}`

ඞ The above sentence is in simple present tense.

ඞ The simple present tense is used to describe habits, unchanging situations, general truths, and fixed arrangements.

ඞ It generally follows the formula- Subject + Base Form (V1) + ’s’ or ‘es’ + rest of the sentence.

ඞ Some examples of simple present tense :-

✌ She loves to play the violin.

✌ Mary enjoys cooking.

✌ He gets up early in the morning.

.........................................................

`\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}`

Answer 2

The answer would be: Our dog howls often at nights

Step-by-step explanation:

The other ones don’t make sense.

Our dog howling often at nights.

Our dog howled often at nights.

Our dog was howling often at nights.