where is my pen? I　＿＿＿　it．A. might lose B. must have lost 选B

where is my pen? I　＿＿＿　it．A. might lose B. must have lost 选B I __(lose)my pen.I must buy a new one.Where is your father?H Yesterday my pen ________.0 A.was lost B.lose C.lost D.were where is my pen?回答 A.yes,it is B.yes,Ican C.I can't find it The pen I ___I___is on my desk.A.thought;have lost B.thought ——_____ she have lost her way?----- She might have.A must B It is _____. A.pen B.my a pen C.a my pen D.my pen My pen is lost .So I want to buy ______ one A.other B. the o The following ,which is right?A.my pen has lost.B.My pen is I have lost my ruler and I cannot find it __. A anywhere B s ——_____ she have lost her way?——She might have.A Must B May Where is my pen?I_____it.（b）