Grammar Quiz

[ Vocabulary ]

A ________ is any condition in an experiment that can be changed.

A. control

B. experiment

C. scientific method

D. variable

Select your answer:
         


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__________more help, I could call my neighbor.

A. needed 

B. should I need

C. I have needed     

D. I should need


Vocabulary › View

His ___________ decision helped the team succeed.

A. decisive

B. decision

C. decide

D. decisively