全部来自 AI 原创生成并经逐题审校的题目，带 精品 标记的为 AI 复审通过。整卷生成请去组卷。
选词填空：从括号中选出正确的词填在横线上，注意句意区分。1. We must ______ the Earth from pollution. (save / protect) 2. Please ______ paper and use both sides of every page. (protect / save) 3. Trees can ______ the city from strong winds. (save / protect) 4. We should ______ energy by turning off lights early. (protect / save)
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完成单词，使句子符合标识的要求。1. The sign says “No swimming.” You m___n't swim here.（禁止）2. The sign says “Wear a seat belt.” You m___ wear one.（必须）
词汇填空：根据中文提示补全句子，每空一词。 1. Look! Smoke from the factory makes the air very d____ (脏的). 2. We should put r____ (垃圾) in the bin to keep the street clean. 3. Cars and buses make the city n____ (吵闹的) too. 4. To keep our city clean, we can take the bus or w____ (步行) to school.
下列句子中，make+宾语+形容词结构使用完全正确的一项是（ ） A. Smoke from cars makes the air dirty. B. Rubbish makes the streets beautifully. C. The factory makes clean the river dirty. D. We should makes our city clean.
用 make+宾语+形容词（注意动词形式变化）完成句子：Rubbish in the water ___ (make) the river dirty. What can we do ___ (keep) our city clean? We should not throw rubbish anywhere, because it ___ (make) our streets messy. Smoke from cars ___ (make) the air ___ (dirty).
Lily wants to describe an environmental problem. Which sentence is correct? A. We keep our city clean every day. B. The streets are dirty because people throw rubbish everywhere. C. Rubbish makes our city clean. D. There are many trees in the park.
根据句意及首字母提示，补全单词：Smoke from factories and cars makes the air dirty. Dust and r___ (垃圾) also make our city messy. To keep our city clean, we should not p___ the rivers or throw rubbish everywhere.
用所给动词的适当形式填空：The river is dirty because some people ___ (wash) their bikes in it now.
At a park gate, there are two signs: “No cycling” and “Keep off the grass”. A boy is riding his bike on the path, not on the grass. The first sign means he ___ here.
阅读短文，完成句子。At the bus station, Leo sees a sign: “Don’t run.” He walks to the bus and waits quietly. Leo ___ run at the bus station.
Tom is at the train station. He sees a sign that says 'No smoking'. His father wants to tell him what the sign means and the rule. Which sentence is correct? A. Please smoking here. B. Don't smoke here. C. Don't smokes here. D. Please not smoke here.
Complete the missing letters to make a sentence about the past: Years ago, our school garden had no flowers. Now it is full of them. The garden u___ to be empty.
根据句意补全疑问词，每空补全缺少的字母。Ben went to Green Lake during the holiday and travelled by train. Mia asks him: 1. W__ did you go during the holiday?（地点） 2. H__ did you travel there?（交通方式） 3. W__ did you come back?（时间）
在商场里，Tom 看到一个标识：请保持安静。下面哪句话正确表达了这条规则的意思？ A. Please be quiet. B. Don't be quiet. C. Please stand up. D. Don't eat here.
Mike 正在介绍爷爷家乡的变化。下列哪个句子完全正确？A. Twenty years ago, there was many trees in the village. B. Twenty years ago, there were many trees in the village. C. Twenty years ago, there had many trees in the village. D. Twenty years ago, there was a lot of trees in the village.
根据句意和首字母提示，补全描述变化的形容词：My grandparents’ home has a new look now. It is d________ from the home in their old photo.
根据句意和首字母提示，补全描述变化的形容词：1. My grandpa was thin twenty years ago, but now he is f____. 2. The street was dirty before, but now it is c____. 3. My bag was old two years ago, but now it is n____.
Ben played with toy cars every evening when he was five, but he doesn’t do that now. He ___ play with toy cars every evening.
选择最佳答案：In the past, there ____ some tall trees behind my old house, but now there ____ a new park there. A. was; is B. were; is C. were; are D. was; are
去年暑假，Mia和爸爸妈妈去南京看望外婆。他们先乘火车到上海，然后在上海换乘高铁（high-speed train）去了南京。请根据情境补全句子（每空词数不限）：Last summer, Mia went to Shanghai ___ ___. Then she ___ ___ ___ ___ to Nanjing to visit her grandma.