Question

Read the sentences.

The precipitation that falls on the South Pole is always in the form of snow. It usually is the byproduct of cyclones.

What punctuation and/or conjunction can be used to combine them?

snow and it
snow, it
snow, and it
snow; and it
16.

Read the sentence.

He _____ to pay his bills.

What is the past tense of the verb “promise”?

promised
is promising
has promised
promises
17. What are the four principle parts of verbs?

present, future, past, and continuous
present, present participle, past, and past participle
perfect,