—What caused the party to be put off?
—__________ the invitations.
A.Tom delayed sending B.Tom’s delaying sending
C.Tom delaying to send D.Tom delayed to send
—What caused the party to be put off?
—__________ the invitations.
A.Tom delayed sending B.Tom’s delaying sending
C.Tom delaying to send D.Tom delayed to send
B
Tom’s delaying sending是-ing形式的复合结构可代替what在句中作主语。