The correct answer is A. have been
This is a linking verb that provides the aspect of the main verb that is careful. Should is a modal verb.
It is in his tone when he speeks he reveals the setting
Answer:
because he did not do the right thing
Explanation:
I did that essay and I got it right
The President of the United States, together with the leaders of several Central American countries, have agreed to new meetings on agricultural practices.