- A礼物
- B奇怪
- C经常
- D机会
- E认真
- F提高
ការពន្យល់
Step 1: look at the slot – after the subject “我的汉语水平” (my Chinese level) and before “得很快”, so it needs a verb (pattern V + 得 + complement). Step 2: of the six words only “提高” (to improve) and “经常” (often) could sit near a verb, but “经常” is an adverb and cannot take “得”. Step 3: “水平提高” (one's level improves) is a very common HSK 3 collocation. So the answer is “提高”: my Chinese has improved very quickly.
ការពន្យល់
After “非常” (very) we need an adjective, which rules out the nouns “礼物” and “机会” and the verb “提高”. Two adjectives remain: “认真” (conscientious, attentive) and “奇怪” (strange). The second clause, “老师说的每句话都记下来” (he writes down every sentence the teacher says), describes a very attentive student, so the answer is “认真”. “奇怪” fits after “非常” grammatically but not in meaning.
ការពន្យល់
The slot follows “的好” (a good …), so it needs a noun. There are two nouns: “机会” (chance) and “礼物” (present). The clause “你一定要去” (you must go) shows it is a rare opportunity: “去北京学习的好机会” (a good chance to study in Beijing). “礼物” does not fit, because studying in Beijing is not a present you buy or give. The answer is “机会”.
ការពន្យល់
The slot follows “买一个” (buy a …), so it needs a noun for something you can buy. The context “妈妈的生日快到了” (Mum's birthday is coming) points straight to “礼物” (present). “机会” (chance) is also a noun, but you cannot “买” (buy) it. The pattern “给 + person + 买 + thing” (buy something for someone) is very common at HSK 3. The answer is “礼物”.
ការពន្យល់
After “真” (really) we need an adjective of feeling or judgement. The phone “刚才还在桌子上” (was on the table a moment ago) and now “怎么不见了” (how come it's gone) – that is puzzling, so the answer is “奇怪” (strange). “认真” is also an adjective but describes how carefully someone works. The leftover word in this set is the adverb “经常” (often): it fits no blank, because “非常” and “真” need adjectives and “买一个” and “好” need nouns.