Use the or zero article to fill in the gaps. (1) … bat is a night animal. During the day, (2) … bats usually roost in large groups in (3) ……

Use the or zero article to fill in the gaps. (1) … bat is a night animal. During the day, (2) … bats usually roost in large groups in (3) … caves, (4) … attics, or (5) trees, hanging upside — down.