根据短文内容，用所给词填空。
because many bad in nice to can't
During the winter, 1 birds disappear. They fly away 2 the weather is cold. There are no insects in the air and they 3 find any food. These birds fly 4 warmer places. The weather is 5 and warm,
and they can find food easily.
参考答案：
l. many 2. because 3. can't 4. to 5. nice |
|