问题
Where is your father ? －He is at work . He always has lots of work __________ .
A:do
B:to do
C:doing
D:does
B:to do
C:doing
D:does
正确答案是：
同类题型
_______are you going to see your mother?—By train.
Excuse me, Mr. He, are you free? Lin Tao and I want to tell you _____.–Sure.
There are more than twelve students in the restaurant now.
Look out when crossing the road, _____ you may be hit by a car.
He is a very hard-working student．—．As far as I know, he often burns the midnight oil．