Answer:
1 She learned to play the drum from Mrs. Gupta . <em>(past tense should be used according to the sentence)</em>
2 She makes delicious pizzas. <em>(Simple present should be used according to the sentence)</em>
3 You are supposed to reach the station by now .<em>(Plural verb used according to the sentence)</em>
4 I am planning to go trekking in the mountains. <em>(Singular verb used according to the sentence)</em>
5 Are you going out Today? <em>(Plural verb used according to the sentence)</em>
6 Why have they left? <em>(Plural verb used according to the sentence)</em>
7 A group of trekkers are climbing up the hill .(<em>Plural verb used according to the sentence)</em>
8 Jabin and David are good friends. <em>(Plural verb used according to the sentence)</em>