Jack is doing a (s)首字母是s括号里填什么?

jack is doing a s什么 Jack is doing a (s)首字母是s括号里填什么? jack is能不能缩写成jack's?能不能说jack's running?或者说jack's a teacher？ Mr Black is a friend of ______.A.Jack's aunt B.Jack aunt's C.jack's aunt D.aunt's of jack This coat is ---.a.Mary brother Jack's b.Mary brother's Jack c.Mary's brother Jack's d.Mary brother Jack who's that speaking?__________.a,this is jack speakingb,i'm speakingc,jack is med,i'm jack What are you doing,Jack?Father's Day is coming.I'm thinking about __.请问为什么选What are you doing,Jack?Father's Day is coming.I'm thinking about __.A:what present I gave him B where we had a big meal C:how I will give him a surprise D:if I pl This is ____ mother.A.Jack and Jane B.Jack's and Jane's C.Jack and Jane;s D.Jack and Jane打错了 C.Jack and Jane‘s D.Jack's and Jane whose room is this?It's___.they are brothers.A:Jack;s and Jim's B .jack and jim's C.jack's and whose room is this?It's___.they are brothers.A:Jack;s and Jim's B .jack and jim's C.jack's and jim D Jack and Jim为什么的？是 jack's and jim's 为什 Jack usually?his homework in the evening.Now he?his homework.A.does;is doing B.doing;does C.do;doing D.is;does Look!The girl is ____?A.singing B.dancing C.doing What ______Lucy and Lily have?A.do B.does C.is having It's twelve now .Jack is______lunch at home.A.have B.has C.having Mrs.Bond is an old friend of _______ A.Jack's mother B.Jack's mother's —what is Jack doing?—He is inviting his f—what is Jack doing?—He is inviting his friends ( )join in his birthday party.A.to B.不填 C.for Mr Black is a friend of ______.A.Jack's aunt's B.Jack aunt C.jack aunt's D.aunt's of jack为什么选A不选C呢?哪位大大知道呢? jack has a dog in his room改成同义句是不是It is a dong in jack's room 用所给动词的适当形式填空：What's jack doing?He ---(put)on a white shire. Jack is doing better in math.Jack is ()()math改同义句 Now Class 2 and Class 5 ______（have）a test.____ your cat _____ （sleep）now?从方框中找出最佳的选项,补全对话.Hhllo!May I speak to Jack ,please?__1___.Who's that?Hello ,Jack .This is Ann .What are you doing?__2__.How's it going?__3