181. What are you doing?
你在做什么？
182. I'm reading a book.
我在看書。
183. What's your friend doing?
你的朋友在做什么？
184. He's studying his lesson.
他在學習功課。
185. I'm not doing anything right now.
我現在沒做什么事情。
186. Where are you going?
你到哪兒去？
187. I'm going home.
我回家去。
188. What time are you coming back?
你打算什么時候回來？
189. I'm not sure what time I'm coming back.
我不能肯定我將在什么時候回來。
190. What are you thinking about?
你在想什么呢？
191. I'm thinking about my lesson.
我在想我的功課。
192. Who are you writing to?
你在給誰寫信呢？
193. I'm writing to a friend of mine in South America.
我在給南美洲的一個朋友寫信。
194. By the way, who are you waiting for?
那么，你在等誰呢？
195. I'm not waiting for anybody.
我沒在等誰。