1 . ________ Lincolns enlarged the house to a full two stories in 1856 to meet the needs of their growing family. （用适当的词填空）

2 . (2018·全国Ⅱ)Corn production has jumped nearly 125 percent over __________ past 25 years, while rice has increased only 7 percent.

3 . （2022新高考I卷）Covering an area about three times ________ size of Yellowstone National Park, the GPNP will be one of the first national parks in the country. （用适当的词填空）

4 . Of ________ nineteen recognized polar bear subpopulations，three are declining，six are stable，one is increasing，and nine lack enough data. (用适当的词填空)

5 . Unexpectedly，I'm face-to-face with the gorilla，who begins screaming at ________ top of her lungs. That makes her baby scream，and then a 400-pound male appears. （用适当的词填空）

6 . （2022年浙江 1月真题）Cobb, for her party, started to ask conference organizers who invited her to speak if she could do so remotely; about three-quarters of ________ time, they agreed. （用适当的词填空）

7 . The pizzas are delicious. Little Tom would like to have ________ third piece because ________ second piece is rather too small.

A．a; a

B．the; the

C．a; the

D．the; a

8 . The student, who gave his life to save a child, was ______ honor to our school. A       memorial is held here every year in ______ honor of him.

A．an; the

B．an; /

C．the; the

D．a;/

10 . —Have you ever seen_________ film Ne Zha?
—Yes, I have. It tells us_________ different story of Ne Zha.

A．a; a

B．the; the

C．a; the

D．the; a