—Jane, have you finished yourpaper?     —No, I      my sister with her homework all the morning.
#102934
A
help
B
have been helping
C
helped
D
was helping
推荐题目
The order is that all the goods _____ to the city on time.
#102609
A
ship
B
shipped
C
be shipped
D
are shipped
I’m calling about the apartment you        the other day. Could you tell me more about it?
#99375
A
will advertise
B
had advertised
C
are advertising
D
advertised
Hundreds of jobs ______ if the factory closes. 
#104395
A
lose
B
will be lost
C
are lost
D
will lose