I think it is one of the most useful ______(dictionary)请问这个dictionary要加s吗?

i think it is a problem of time ,not___of ability.A one B the one C that D a one He has done a lot of work,___ necessary to our study.A.which I think is B.which I think it is C.I think which is D.which I think is itWhich one?why? that's one way to think of it,i guess I think it is one of the most useful ______(dictionary)请问这个dictionary要加s吗? Is this pair of trainers nice?It's nice.But I think that ____looks better.A.one B.pairC./ our shop ______（离开）at 6:30 every morning i think it is one of the best _____（图书馆） in our school i think it is one of my _____(老师）our shop ______（离开）at 6:30 every morningi think it is one of the best _____（图书馆 i am thinking （think）it is one of the most interesting books of the year. 哪个对?前一句是我正在读书的 Which one is right of the following sentences?A.I don't think it is a free choice.B.I think it is not a free choice.C.I didn't think it is a free choice.D.I thought it wasn't a free choice. 1、Is this factory （ ）you visited the other day?A、the one B、that2、The professor has written another book,（ ）of great importantce to computer science.A、which I think it is B、which i think is What _____ this one I think it's very nice.How much is it it is one of the most i-----american h------ I it think is right Have you seen a ( )pen I left it here this morning.Is it( )black one?I think I saw it somewhere.Is it ( ) black one I think I saw it somewhere.这两个空都填什么?请说明原因. 求翻译 i think of your girl.For,one is often considered.i think of your girl.for,one is often considered. i once had lots of daskmates,but i think bill is the best one.怎么翻译 Do you like tofu? Yes,and I think it is one of __ (delicious) food in China.跪求,亲,速度 首字母填空：I think it is one of the g______ cities in the world.我填的是grestest ,书上答案是greatful.为什么? What do you think of your new job?I think it is very difficult（判断）