Read the sentence. Once the scientist completed to assemble the components, she tested her new device to see if it performed as expected. What is the best word to replace the infinitive in the sentence? assembling assemble assembled assembly

assembling

Explanation: just took the quiz

The answer is assembling

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.