[ Vocabulary and Grammar ]
. Which of the following best defines “contribute”?
A. To take away from something
B. To refuse to help others
C. To give or add something to help a cause
D. To copy someone else’s work

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Choose the correct sentence using ‘going to.’
A. He will travel to London next week.
B. He is going to travel to London next week.
C. He is travelling to London next week.
D. He has travelled to London next week.