(
A
) 1. How can you know it's going to rain?
A. When a frog cries loudly.
B. When a fish stays in water for long.
C. When dragonfly flies very high.
D. When a magpie cries happily.
(
B
) 2. Why does a dragonfly fly low when it's going to rain?
A. Because it wants to show it's going to rain.
B. Because it wants to eat insects in low places.
C. Because it wants to tell people to take an umbrella.
D. Because it wants to tell people something good will happen.