229. I decided ___________ at this hotel for the next five days.

A. to stay       B. staying       C. stay            D. stayed

230. Children should be_______to realize their full potential.

A. encouraged           B. courageous           C. encouraging          D. discouraged

231. Before the invention of vaccines, people _________ from many fatal diseases without treatment.

A. has suffered          B. had suffered          C. suffered                D. suffer

232. Andy: “Thank you very much for your help.”

        Maya: “_______”

A. You're welcome.                  B. How nice of you to say so!

C. Yes. That's alright.                 D. Thank you very much too.

233. Since the computer ___________ , it has made considerable changes to our daily life.

A. is invented            B. has been invented           C. was being invented         D. was invented

234. What should we do to reduce the level of environmental_______?

A. pollution             B. pollute         C. polluted     D. polluting

235. Nowadays it is not easy_______a well-paid job.

A. finding                  B. to find                   C. found         D. find

236. Max: “Could you do me a favour, please?”

        Mike: “_______”

A. Do you really need help?          B. Sure. No problem.

C. No, thank you.                            D. Yes. and when's that?

237. It is_______to translate each lesson into your language. This is not a good way to study English.

A. productivity         B. productive            C. production            D. unproductive

238. We don’t know where ________ our car in the crowded street.

A. park                B. to parking             C. to park          D. parked

239. I think Bitcoin _____________ as an official currency in the future.

A. will be accepted            B. is accepted          C. will accept              D. has been accepted

240. Trang: “I passed the driving test yesterday."                     

        Susan: “________________”