请问is used 和 was used怎样区别?为什么is 后面可以加used(过去式)
请问is used 和 was used怎样区别?为什么is 后面可以加used(过去式)
is used和used to 有什么区别
get used to 和is used to
is used to 与is used for与is used as有什么区别
is used to 和is used for 的区削
used to be和was often区别
He is used to walking after the meal.变一般疑问句和否定句used 为什么?
be under 后面一般加名词!表示被动!但是The machine is under used.这句话的used怎么
water is used for.
what is used in
This flower is used
请问bamboo is used ()house in some place.为什么是to build,可以用to be