Simple Present Tense
In these sentences words like everyday, often, seldom, never, every month, generally, usually, etc. may be used.
1. Fill in the blanks with the correct form of the verb in brackets.
The African lungfish can live without water for up to four years. During drought, it ___(dig) a pit and ___(enclose) itself in a capsule of slime and earth, leaving a tiny opening for air. The capsule ___(dry) and ___(harden), but when rain ___(come), the mud ___(dissolve) and the lungfish ___(swim) away.

Explanation

The African lungfish can live without water for up to four years. During drought, it digs a pit and encloses itself in a capsule of slime and earth, leaving a tiny opening for air. The capsule dries and hardens, but when rain comes, the mud dis solves and the lung fish swims away.