注:选择哪个说一下理由!
1There is_____invitation card from John on my desk.
A.a B.an C.the D./
2This school is____than the other schools in the US.
A.old B.older C.the oldest D.the older
3Anna's birthday is coming.Her parents are pianning _______a birthday party for her.
A.have B.to have C.having D.to having
Can you tell me what you did_______your school open day?
A.on B.in C.at D.to
第一题的invitation是特制的么？是要定冠词吗？