In the passage given below, replace the underlined numbers, with the correct options (contractions). There is a mango tree in my garden. 16 very old. In summer, it gives us a lot of mangoes. 17 very sweet. I pluck the mango leaves during festivals, because 18 good at climbing trees. My sister has a swing tied to a low branch. 19 fond of swinging under the tree. 20 lucky to have the mango tree.

• A. I'm
• B. It's
• C. We're
• D. They're