181. You ___ care of your health.

182. Unless protected areas are established, the Bengal tiger, the blue whale, face ___ of extinction.

183. If water is heated to 212 degrees F. ___ as steam.

184. These days transport ___ faster and easier than ever before.

185. I ___ your work. Please remind me.

186. I ___ on this topic for some time before I realised my mistake.

187. If Napoleon had not invaded Russia, he ___ the rest of Europe.

188. No one ___ which college he will join.

189. I ___ on this topic for some time before I realised my mistake.

190. Can you tell me ______.

191. I ran quickly ___ late.

192. I ___ trouble with my bicycle these days.

193. When the clock struck six o’clock, I ___ here for over an hour.

194. I ___ a lie if I ever said that I liked you.

195. He asked the teacher if he ___ with that pen.

196. I will sing if he ______.

197. I will meet him when he ___.

198. When your body does not get ___ it can not make the glucose it needs.

199. Many chemicals react ___ in acid solutions.

200. It is now believed that some damage to tissues may result ___ them to frequent X-rays.