—Listen! Is it Linda singing in the next room?    

—No, it _    be her. She is still in Shanghai. [ ]

A. can't                    

B. couldn't

C. may not                  

D. might not

不宜行输卵管通液术的是（）。

A.月经干净4天

B.术前体温37℃

C. * * 炎治疗中

D.慢性盆腔炎

E.曾有肺结核病史