may_____hao to use the modern telephone.A.not to know B.not know C.know not

may_____hao to use the modern telephone.A.not to know B.not know C.know not 是didn't used to 还是 didn't use to I don't know how commas 该是什么I dont't know how use commas 为什么选use to use used to do 的否定式didn't use to do 中的use怎么读? use to do的一种否定 形式是：didn't used to和didn't use to ? you didn't use to be like that 翻译 didn't ,like ,l,to ,tests ,use ,连词成句 Don't use your bird to suck my dick I love you is to use language can't express. didn't use to 造句 要有中文（3句） Some students don't eve have e___writing paper to use you can't use fork to eat rice,can you? Don't worry ,you will get use to it soon 此句的use是用used还是用use? Use the information in the box to help you.Use should or shouldn't. I don't know __________.A.how can I use it B.how to use it C.what I can use it D.what to use it Tom usedn't to drink.和Tom didn't use to drink有什么区别? didn't use to do 和 usedn't to do 一样吗 都是什么意思 . couldn't be used then.It wasn't ( ) to use it.It couldn't be used then.It wasn't ( ) to use it.a)ableb)allowedc)impossibled)possible