[ Grammar ]
Many islands are below _______ and only the concrete walls can prevent them from disappearance.
A. human activity
B. greenhouse gas
C. sea level
D. ice cap

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Grammar and Vocabulary › ViewMy family really loves Japanese food, …………. we order it twice a week.
A. so
B. yet
C. but
D. nor
Tenses › View
The old man __________________ on the pavement, so James __________________ to help him.
A. fall, stopped
B. fallen, stop
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Grammar › ViewThe latest news ——–that the criminal has been arrested.
A. is
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Active & Passive › View
The window …………………….. .
A. was closed
B. close
