The island where these rare birdsnest has been declared a _____.
| A．observation | B．reservation | C．preservation | D．conservation |
The teacher refused to have his daughter study in his class, ______ showing favour to her.
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—I’ve heard they went skiing in the mountains last winter.
—It ______ true because there was so little snow there then.
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. ______ by the earthquake, the city of Port-au-Prince(太子巷) had to be rebuilt.
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. —Alice promised to come around to ______ you company today.
—But she hasn’t. I’ve been alone all day.
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Book three is ______ most difficult book,but is isn’t ______ most difficult one in Senior school books.
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