某女，28岁，已婚，平素月经规律，停经45天， * * 少量出血4天，有下腹胀痛1天就诊。孕产，人工流产1次，去年左侧输卵管妊娠，手术治疗，切除该侧输卵管。提示：查体：T36．7℃，P72次／分，R20次／分，BP100／70mmHg，心肺未见异常，腹平坦，无胃肠型及蠕动波，右下腹有深压痛，无反跳痛，无腹肌紧张，移动性浊音阴性；妇科检查：外阴少量流血，宫颈光滑，宫口闭，后穹隆不饱满，宫颈无举痛，子宫常大，质软，右附件稍增厚，有压痛，左附件未见异常。

为进一步明确诊断并制定下一步治疗方案．需进一步做哪些检查()

A.血HCG

B.血CA125

C.血CEA

D.血AFP

E.PRL

F.血常规

根据句意，用括号中所给词的适当形式填空。

( )1. Let ______  try, and I will understand.  (I)                                                                      

( )2. I have met many kind teachers in the past three years. I think I am a ______ girl. (luck)  

( )3. Life to everyone is only ______, we shouldn't waste time. (one)                      

( )4. Give up  ______! It's bad for your health. (smoke)                                      

( )5. Li Na is one of the best tennis  ______ in the world. (play)