根据所给情景完成下列对话，每空一词

Clark: What events do you   1   at your school?

David: We have an English Speech Contest each year.

Clark:   2   is it?

David: It’s March 5th.

Clark: Do you have   3   Art Festival?

David: Yes. It’s March 17th.   4   we have a basketball game on March 10th.

Clark: When is your School Trip?

David: It’s April 6th.

Clark: Is Linda’s birthday   5   in April?

David: Yes. It’s April 18th.

患者女，65岁，以"右膝关节肿痛1年，加重2天"为主诉入院，查体：右膝关节明显肿胀，局部无明显发热，关节屈伸受限，右膝X线：右股骨远端近关节面处骨质破坏；既往乳腺癌病史，半年前曾行乳腺切除根治手术。

该患者最可能的诊断是（）.

A.骨巨细胞瘤

B.乳腺癌术后骨转移

C.骨髓炎

D.骨结核

E.骨肉瘤

F.骨软骨瘤