國中英語基測出現過 a 的考題。

Balloons can be dangerous!

When balloons are let go, they are often 1 by the wind into the ocean. The salt water in the ocean washes off a balloon's color, making it look clear. Sometimes sea animals, like sea turtles, think balloons are food and eat them. The balloon can block the animal's stomach, so the animal starves to death.

We 2 hold on to a balloon and never let it fly away.

balloon 氣球
ocean 海洋
starve to death 餓死
1.
blow
blowed
blown
blew
2.
should
shall
will
would