Answer:
A) smasher - have - confirmed
B) discoveries - are - part
C) Byrons - are - composite
D) work - was - carried
E) finding - has - been
F) facility - is - going
G) particle - was - found
Explanation:
The omitted words are parts of verb phrases in most examples. Verb phrases are groups of words that contain a verb with another word or words indicating tense, mood, or person. For example, in the first sentence, the word have is omitted. It's a part of the present perfect simple tense (have confirmed). The case is similar in the last four sentences, as well.
In the second and third sentences, the linking verb to be in its form are is omitted.
