Lesson 17-20试题
I. 单项选择 (15分)
A) 词语替换 选择与句中划线部分意思相同或相近的词或短语.
1. Throw some food to the ducks by the water.
A. Hit B. Toss C. Kick D. Hold
2. Many plants and animals are going extinct.
A. have died B. are getting more and more C. died D. are dying out
3. When the bear was coming near, he stood still.
A. quick B. till C, until D, quiet
4. Look! The boy is chasing the dog.
