Complete the sentence with the appropriate form of the given verb: They’ve invited me to their house. They ___________ (be) offended if I don’t go. A. are being B. will be C. are D. have been

The correct answer is: will be.

The sentence is about the future, so we need to use a future tense verb. The verb “to be” has several different forms in the future tense, but the most common one is “will be”.

The other options are not correct because they are not future tense verbs.

• Are being is the present progressive tense. It is used to talk about things that are happening right now.
• Have been is the past perfect tense. It is used to talk about things that happened before a certain point in the past.
• Are is the simple present tense. It is used to talk about things that happen regularly or repeatedly.

In this case, we are talking about something that might happen in the future, so we need to use a future tense verb. The most common future tense verb is “will be”.