1. The problem is to write the 3rd person singular form of given verbs in the present simple tense. 2. The rule for forming the 3rd person singular in present simple is: - For most verbs, add **-s** (e.g., play → plays). - For verbs ending in -ch, -sh, -x, -s, or -z, add **-es** (e.g., watch → watches). - For verbs ending in a consonant + y, change **y** to **i** and add **-es** (e.g., study → studies). 3. Applying these rules: - choose → chooses - play → plays - swim → swims - study → studies - watch → watches - brush → brushes - take → takes - cry → cries 4. Explanation: - "choose" ends normally, so add **-s** → chooses. - "play" ends with vowel + y, so add **-s** → plays. - "swim" regular verb, add **-s** → swims. - "study" ends with consonant + y, change y to i and add es → studies. - "watch" ends with -ch, add **-es** → watches. - "brush" ends with -sh, add **-es** → brushes. - "take" regular verb, add **-s** → takes. - "cry" ends with consonant + y, change y to i and add es → cries. Final answers: 1. chooses 2. plays 3. swims 4. studies 5. watches 6. brushes 7. takes 8. cries