1.The large houses are being painted,but______.

1.The large houses are being painted,but______.
A.of great expense
B.at a great expense
C.in a lot of expenses
D.by high expense
2.Computers can do ______ work in a short time,but a man cannot do ______ by himself.
A.great many...many
B.great deal of...much
C.much...a great deal
D.many...a great many
1.C2.C 答案是不是错了?