Answer:
1. We usually eat at home, but we
are having a picnic now.
2 Kim plays tennis on Mondays.
Now she is playing football
.
3 He often travels by bus, but
today he is walking.
4. The boat is departing now. The
trip takes 90 minutes.
5. They go to Asia every year. They are staying in India now.
Explanation: Use the simple present to express an action that happens regularly, a normally scheduled event, or a habit. It is the base form of the infinitive with "to" removed. For a third-person singular subject, add -s or -es to the base form of the verb in the simple present.
Use the continuous present to express an action that is going on as the sentence is being spoken. The helping verb (auxiliary) is a from of the verb "to be" in the present tense that agrees with the subject. Add -ing to the main verb.