中國共產黨在過渡時期總路線的主體是 ___________。
I don't know how we can make ________ on the timetable for any more courses.
The floor does not look so bad when ________ (sweep) clean.
《國語》載， "同姓則同德，同德則同心，同心則同志 "，"同志 "的基礎是 ()
I'm sorry I forgot to write; I had so much else ________ my mind.
在點（0，-1）處的切線方程為 ________.
