______ when to leave, I could only stay at home, _____ nothing. 
#97220
A
Knowing not; done
B
Not knowing; doing
C
Having not known; done
D
Not having known; doing
推荐题目
The boy had his leg _____ while ____ football.
#97530
A
broken, playing
B
break, play
C
broken, played
D
broke, was playing
Does your new secretary  ____ short hand?
#97549
A
know to take
B
know how to take
C
know how take
D
know how taking