5、oysandgirlsarelookingforwardtoChildren’sDay.He'slookingforwardtohearingfromhisdaughter.either…or…表示两种可能性中任选一种Thesentencecanbeeithertrueorfalse.系动词亦称连系动词(LinkVerb),作为系动词,它本身有词义,但不能单独用作谓语,后边必须跟表语(亦称补语),构成系表结构说明主语的状况、性质、特征等情况Thiskindofclothfeelsverysoft. This