-- Lisa was seen ______ an old man go across the street this morning. --What a kind girl she is! 
#44478
A
helping
B
helped
C
to help
D
helps
推荐题目
.The school meeting ________ once every two weeks in the concert hall.
#44390
A
is held
B
was held
C
will be held
D
has been held
Sixteen-year-olds should _________their ears pierced.
#44743
A
be allowed to get
B
be allow to get
C
allow to get
D
be allowed getting
--What happened in that store?-- A thief _____ by the policeman just now.
#44911
A
is caught
B
caught
C
has caught
D
was caught