Question

When he walked in we... about babies. A) were all talking B) are all talking C) would all talk D) all talked E) all talk

Answer 1

A) were all talking

Answer 2

The correct answer is:

A) were all talking

The sentence is describing an action that was ongoing in the past when "he" walked in. The past continuous tense (were + verb-ing) is used to indicate this ongoing action.