Which of the following basic sentence structures appear in the passage? I. simple II. complex III. compound-complex A. I only B. I and II C. I and III D. II and III E. I, II, and III

"throngs rushed to the coastal area near the airport from which the plane had taken off, overloaded with relief supplies clemente wanted to make sure reached the victims of an earthquake in nicaragua."

no

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.

the krebs cycle and electron transport occur in the mitochondria, though other than that i would need to know more information.