1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.A to;thus Bfor,thus;Cof;therefore Dwith;however2It still puzzles the sceince world why some mammals produce their young____ and hatc

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1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.A to;thus Bfor,thus;Cof;therefore Dwith;however2It still puzzles the sceince world why some mammals produce their young____ and hatc

1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.A to;thus Bfor,thus;Cof;therefore Dwith;however2It still puzzles the sceince world why some mammals produce their young____ and hatc
1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.
A to;thus Bfor,thus;Cof;therefore Dwith;however
2It still puzzles the sceince world why some mammals produce their young____ and hatching while others____ to young babies
Alying eggs,giving birth B by laying eggs;by giving birth
Cby laying eggs;give birth Dlaying eggs;giving birth
请注明为什么

1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.A to;thus Bfor,thus;Cof;therefore Dwith;however2It still puzzles the sceince world why some mammals produce their young____ and hatc
1B 翻译： 对别人礼貌友好对你不会有丝毫伤害,而且情况常常是,你能得到你想要的
be harmful for sb to do sth 做sth对sb 是有害的
thus 和therefore,可以互换
2C
翻译：在科学界依然有一个困惑,为什么一些哺乳动物通过产蛋和孵化的方式来产子,而其他的哺乳动物是生育婴儿.
by是“通过……方式”,作介词,后面动词要加ing
lay eggs 产蛋
give birth to 生育 这里用give,而不是giving,因为这里是与前面的produce平衡.
希望对你有帮助

BC

smoking is harmful to you对吗 it is harmful to you 1It is never harmful ___ you to be polite and gentle to others and___,as is often the cased,you can get what you want.A to;thus Bfor,thus;Cof;therefore Dwith;however2It still puzzles the sceince world why some mammals produce their young____ and hatc it is harmful to have fast food,isn't it反义疑问句是这样吗 and it is also harmful to people who do not somke.准确翻译一下. 英语作文 smoking is harmful (1/2)It's coming,it is always coming,but it never arrives,what is it?tom 语法有什么错误,Dad,please ride your bicycle to work I want to say to my Dad.He is very fat.He usually go to work by his own car.Something withont faults will never be found.Although car is very convenient ,it is very harmful to his health.Beca it is known to all that smoking is harmful to one's health “ that” 作什么成分啊? it is never too late to Cause everything is never as it seems cause everything is never as it It is never too old to learn. Everything is never as it seems to 和 for 的短语的区别我知道 it is good/harmful for sb to do sth,但后来又看到it is good/harmful to sb.它们的区别是什么?各自的意思是什么? smoking is harmful to one's health,but why are there many smokers in the world?Answer it in English ----It's harmful for children to watch TV.-----_____A.There is no problem.B.No,it's harmful.C.Of course,you are right.D.I'm afraid I can't agree with you. Smoking is harmful to your health. _______ (smoke) is harmful to our health.