Susan was just  _____ at those pigeons at the time, so I don’t think she saw me.
#96784
A
spotting
B
watching
C
glaring
D
staring
推荐题目
 After describing the planned improvements, she went on _______ how much they would cost. 
#98428
A
to explain
B
explaining
C
to be explaining
D
having explained
_____all kinds of knowledge ,he was admitted to a key university.
#98174
A
Equipped with
B
Having equipped for
C
Armed for
D
Having armed with