241. Although Danny has been living in the U.S for years, he still uses his mother ______ in daily conversations.
→ B. tongue
 Mother tongue nghĩa là "tiếng mẹ đẻ".

242. By the time Laura left high school, she ______ to speak three languages.
→ D. had learnt
Thì quá khứ hoàn thành dùng cho hành động xảy ra trước một mốc quá khứ.

243. Ryan has a great sense of ______; he often tells jokes that make the whole class laugh out loud.
→ C. humour
Sense of humour = khiếu hài hước.

244. The teachers have to deal ______ a lot of difficulties...
→ B. with
Deal with = đối phó với.

245. Many people keep working until old age... don't want to be a ______ to their children.
→ D. burden
 Burden = gánh nặng.

246. There is an important sports ______ going on...
→ A. event
 Sports event = sự kiện thể thao.

247. Being too busy preparing..., I have little time to ______.
→ D. enjoy
 Have little time to enjoy = ít thời gian để tận hưởng.

248. One can ______ a bundle by working...
→ B. make
✅ Make a bundle = kiếm được nhiều tiền.

249. If his younger brother had more free time, he ______ Chinese...
→ C. would study
 Câu điều kiện loại 2: If + past simple, would + V.

250. Zhang Yiming was born ______ April 1st...
→ C. on
 Born on + day.

251. Our teacher ______ this laptop for nearly seven years.
→ C. has used
 Hiện tại hoàn thành với “for + khoảng thời gian”.

252. Sarah has a good sense of humor. We are ______ in her stories.
→ B. interested
 Người cảm thấy "interested", vật thì "interesting".

253. Thomas asked Jane what time she would come to the party ______.
→ D. the next day
 Tường thuật gián tiếp: tomorrow → the next day.

254. We wish people in the world ______ conflicts...
→ A. didn't have
 Câu ước ở hiện tại: wish + past simple.

255. My older sister studies English ______ than I.
→ C. better
 So sánh hơn của “well” là “better”.

256. Mark went camping with his friends last month, ______?
→ B. didn’t he
 Câu hỏi đuôi với quá khứ đơn.

257. Have you read the novel ______ I gave to you last night?
→ B. which
 Which thay thế cho "the novel" (tân ngữ).