helpful,I,is,think,most,the,telephone,the,invention(连词成句）

I think the telephone is the second ___ A.helpful B.more helpful C.most helpful D.the most h...I think the telephone is the second ___A.helpful B.more helpful C.most helpful D.the most helpful i think the plan for writing is helpful有错么 -I plan to go out for a trip,but I'm afraid I don't know the() -A map is helpful,I think-I plan to go out for a trip,but I'm afraid I don't know the() -A map is helpful,I think.A.priceB.wayC.time I think it helpful to do the housework和I think it is helpful to do the housework.有什么区别? helpful,I,is,think,most,the,telephone,the,invention(连词成句） I think being a volunteer is helpful to people.为什么用 being请高手解答, I think watching English movies is helpful.(改为否定句及反意疑问句） I think watching English movies is helpful too改为否定句 I think donate money to charities is helpful,isn't it?改错 think后面加动名词,为什么如这道题;I think _______(have conversation)with friend is helpful.正确答案为having conversation为什么? I often do that ____a day ,in the morning and in the evening .I think it is helpful. 1.i think the microwave oven is the (two) most helpful invention2.i think the light bulb is (use)invention of the four. I'm helpful的英语小短文 写“I m helpful作文五句话 why do you think that internet is helpful? We all think that the book is very helpful to us.为什么是helpful 急：为什么What do you think is the most helpful invention?和what do you think I can do?语序不同What do you think is the most helpful invention 和what do you think I can do?都有插入语do you think ,为什么句子都算对,语序却不 what do you think is the most helpful invention.为什么不是What do you think the most helpful inventi