i am having a surprise party for lana on Friday night中为什么是am having?

i am having a hard I am having a party for “I am having a wonderful time here. I am having a class.I will call you back. i am having a surprise party for lana on Friday night中为什么是am having? I am having a birthday party ( ) ( ) you come? I am having a science lessson (对画线部分提问 i,having,am,picnic,with,a ,friends,my(.) Excuse,I am having a baby here!翻译. I am having a lunch. Tell me the diffences.1)I had a lunch. ----explain2)I am having a lunch.----explain3)I have a lunch.----explain4)Having a lunch----explain I __ a meeting at this time tomorrow morning.A.will have B.will be having C.am having I am a French,I want to learn Chinese by myself,having any method? ---Tom isn’t having a good time at the moment.---- N_______ am I.---Tom isn’t having a good time at the moment.---- N_______ am I. i am having a _____ time in china.a.greai am having a _____ time in china.a.great b.well c.better d.greatly(求解答) i am having breakfast 用现在完成时改写 I am extremely happy having you . I am having a great time _____ camp.A.at B.in C.on _____________wonderful birthday I am having!A、what B、what a C、how D、how much