The following sentence issues which principal part of the verb? i ring the bell when it is time for the doors to open .
a past participle
b past
c present participle
d present

Ring- present participle

Explanation:

The sentence is an example of "present indefinite sentence" in the affirmative version which suggests the use of the first form of the verb i.e. "present participle" form of the verb. The statement exemplifies a habitual action of the speaker which is written with the use of present participle form of the verb. "I ring the bell when it is time for the doors to open". "ring"(present participle) here is the verb that draws the answer of the question.

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

yes they most likly are and have planed t try to bring human life and supplies there also(due to global warming and other harmful resorces)