Give affirmative response to all questions. 1. Tā lái le ma? 他/她來了嗎? Has he/she come? Tā yǐjīng lái le ma? 他/她已經來了嗎? Has he/she already come? 2. Máo tóngzhì dào le ma? 毛同志到了嗎? Has Comrade Máo arrived? Máo tóngzhì yǐjīng dào le ma? 毛同志已經到了嗎? Has comrade Máo already arrived? 3. Lǐ tóngzhì zǒu le ma? 李同志走了嗎? Has Comrade Lǐ left? Lǐ tóngzhì yǐjīng zǒu le ma? 李同志已經走了嗎? Has comrade Lǐ already left? 4. Mǎ tóngzhì zǒu le ma? 馬同志走了嗎? Has Comrade Mǎ left? Mǎ tóngzhì yǐjīng zǒu le ma? 馬同志已經走了嗎? Has comrade Mǎ already left? 5. Zhāng tóngzhì lái le ma? 張同志來了嗎? Has Comrade Zhāng come? Zhāng tóngzhì yǐjīng lái le ma? 張同志已經來了嗎? Has comrade Zhāng already come? 6. Huáng tóngzhì dào le ma? 黃同志到了嗎? Has Comrade Huáng arrived? Huáng tóngzhì yǐjīng dào le ma? 黃同志已經到了嗎? Has comrade Huáng already arrived? 7. Sūn tōngzhì zǒu le ma? 孫同志走了嗎? Has Comrade Sūn left? Sūn tóngzhì yǐjīng zǒu le ma? 孫同志已經走了嗎? Has comrade Sūn already left?