I must return the book to the library. I _____ it for one week.
#41947
A
keep
B
borrowed
C
have kept
D
have lent
推荐题目
He thought he ________ a teacher two years later. 
#42065
A
will be
B
is going to be
C
would be
D
was
Many people are        the countryside        the cities.
#39857
A
moveing from, to
B
moving from , to
C
move to, from
D
move to , from to
 The girl sitting next to me on the plane was very nervous, for she            before.
#39482
A
hasn’t flown
B
hadn’t flown
C
didn’t fly
D
wasn’t flying
— Look! The light is still on in our teacher’s office.— Probably she ______ her work yet.
#39942
A
doesn’t finish
B
didn’t finish
C
hasn’t finished
D
won’t finish