-- 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
She was seen ____ the theatre at that moment.
#44861
A
go into
B
to go into
C
went into
D
going into
These kinds of vegetables       only in that shop over there. They_____­ well.
#44675
A
are sold; are sold
B
sell; sell
C
sell; are sold
D
are sold; sell
 The girl was often heard ______ happily in her room.
#44796
A
sing
B
to sing
C
singing
D
sings