15.  As Polly was riding on the train, she sensed that she was _____ by a tall man in a dark coat.
#97719
A
being stared
B
being watched
C
being attached
D
glanced
推荐题目
To succeed in a scientific experiment _____ .  
#98179
A
carefulness is need
B
carefulness is one needs
C
one needs to be careful
D
one need being careful
We are invited to a party _________in  our club next Friday.  
#98989
A
to be held
B
held
C
being held
D
holding