1 . _________ _________(随着时间流逝), this could make her a danger to people living in the area. (根据汉语提示完成句子)

2 . On a cold evening with snow floating in the air, I ________ ________(被困) on the road because of a flat tire.

3 . She ________ ________(学会) Spanish when she was living in Mexico.

4 . Do you think that mixed – ability classes ________ ________(阻碍进展) the better students?

5 . Care for the environment will become very important with the earth's natural resources ________ ________(用完，枯竭).

6 . Born in a family with three brothers, David ________ ________ ________(养育，培养) to value the sense of sharing as a young boy.

7 . As a computer engineer, there's always a new challenge just________(即将到来).（根据汉语提示完成句子）

8 . ___ not until the 1920s ___ pompoms began to play an important part in cheerleading.
直到20世纪20年代，彩线球踩在拉拉队队员的表演中发挥重要作用。