Carbon emissions from airplanes and other pollutants ________ to global warming. A. contribute B. stem C. attribute D. spark

SECTION II: LEXICO – GRAMMAR

Part 1: Questions from 16 to 35

Choose the best answer from A, B, C or D to best complete the following sentences.

Carbon emissions from airplanes and other pollutants ________ to global warming.

A. contribute   
B. stem 
C. attribute 
D. spark

Trả lời

Chọn A

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