When()that the principal was very strict, he didn't dare go to the office alone.
A. tell
B. told
C. was telling
D. telling
There()an old man and two bodyguards standing on the platform.
A. to be
B. being
C. is
D. are
若P(2,-1)为圆(x-1)2+y2=25的弦AB的中点,则直线AB的方程是()。
A. x-y-3=0
B. 2x+y-3=0
C. x+y-1=0
D. 2x-y-5=0
E. A、B、C、D都不正确
She shows little regard for the feelings of others and does exactly what she wants to().
A. feeling
B. love
C. consideration
D. sense