whose is ＿pen on my desk?A.a B.an C .the D.不填

whose is ＿pen on my desk?A.a B.an C .the D.不填 look!() eraser is on the desk,whose is it?A .A B.An C .The D This is your pen._______is on the desk.A.my b.I c.me d.mine 1,There is on-----book on the desk Athe B a C an D╱答案D,为什么不加 There is no[ ] book on the desk A the B a C an D / There is underground station near my home.A a,B an,C the,D不填 _______ clock and a pen __________ on the desk.A.An,is B.A,i __book on the desk is __useful one A .The;an B.A;a C.The;a D It is _____. A.pen B.my a pen C.a my pen D.my pen IS this（ ）pen? no, ( )is on my desk A your;my B yours;my C y there is a pen on the desk? My book is on（ ）desk A,my B,the my C,a my