Which is ____(useful),a car or a bike

Which is ____(useful),a car or a bike computer is so useful a machine ____ we can use everywhere.A.that B.which C.as D.what Which do you think is the first ____ in the world?----Computer,I think Amost uesful B useful It is such a useful dictionary ____ every boy and every girl ____ to buy前一空为什么用as 不用which? 用所给词的适当形式填空 Which of the thre inventions is ____ （useful) one?1.Which is much ______ (far) from the earth ,the sun the moon 2.Which of the thre inventions is ____ （useful) one?3.They told me to keep quiet ,because they ____( Which letter is most useful to a deaf woman? Which letter is very useful to a deaf man?xx Which is the most useful skill to learn?怎样翻译 Which letter is very useful to a deaf woman? 1.which letter is very useful to a deaf woman? Which letter is useful to a deaf woman? Which letter is very useful to a deaf woman? Java and C++,which is better and useful? 英语翻译____ _____ ______,English is very useful. It is ____ useful book.I borrowed it yesterday. -which is more useful,biology or chemistry -i think ___them is useful.-which is more useful,biology or chemistry -i think ___them is useful.a.either of b .none of c,both of d.all of 选哪个 ,回答,急 English is more useful than other subjects.(同意句) English is____ ____ ____ ____ ____the subjects they produced two reports,but neither of which is useful.代词不能用which吧