______ one task, we started another one（）
A. B. To have completed
B. A. To complete
C. D. Being completed
D. C. Having completed
What does “tsunami” mean exactly（）
A. B. A large amount of earth and rocks falling down a cliff or side of a mountain
B. D. An extremely violent storm
C. A very large wave caused by an earthquake or volcanic eruption
D. A. A very and snowstorm with strong winds
The purpose of writing is ______ the readers（）
A. to inform
B. entertain
C. stimulate
D. display
The examiners pay more attention to ______（）
A. process
B. end product
C. vocabulary
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