Scientists
have known for a long time that plastic is harmful to ______ .
have known for a long time that plastic is harmful to ______ .
举一反三
- 浏览器不支持音频Passage 2: Scientists have known for a long time that plastic is harmful to ______ .
- “____ each other for a long time?” “Yes, since we were at school.” A: Have you known B: Do you known C: Have you been knowing
- I have known her for a long time. / She........................ to me for a long time. A: has known B: has been known C: is known
- Scientists are responsible for people who hold harmful beliefs about human nature because. A: the theories of scientists are used as justification for such harmful beliefs B: only through science can these people be refuted C: they have an obligation to correct their mistakes D: scientists are the ones who know the true nature of humankind
- It has been known for a long time that there is a first relationship between the heart and the liver.