Give affirmative response to all questions. 1. Tā lái le ma? 他/她来了吗? Has he/she come? Tā yǐjīng lái le ma? 他/她已经来了吗? Has he/she already come? 2. Máo tóngzhì dào le ma? 毛同志到了吗? Has Comrade Máo arrived? Máo tóngzhì yǐjīng dào le ma? 毛同志已经到了吗? Has comrade Máo already arrived? 3. Lǐ tóngzhì zǒu le ma? 李同志走了吗? Has Comrade Lǐ left? Lǐ tóngzhì yǐjīng zǒu le ma? 李同志已经走了吗? Has comrade Lǐ already left? 4. Mǎ tóngzhì zǒu le ma? 马同志走了吗? Has Comrade Mǎ left? Mǎ tóngzhì yǐjīng zǒu le ma? 马同志已经走了吗? Has comrade Mǎ already left? 5. Zhāng tóngzhì lái le ma? 张同志来了吗? Has Comrade Zhāng come? Zhāng tóngzhì yǐjīng lái le ma? 张同志已经来了吗? Has comrade Zhāng already come? 6. Huáng tóngzhì dào le ma? 黄同志到了吗? Has Comrade Huáng arrived? Huáng tóngzhì yǐjīng dào le ma? 黄同志已经到了吗? Has comrade Huáng already arrived? 7. Sūn tōngzhì zǒu le ma? 孙同志走了吗? Has Comrade Sūn left? Sūn tóngzhì yǐjīng zǒu le ma? 孙同志已经走了吗? Has comrade Sūn already left?