--Have you found your book yet? --- No, I’m not sure where I________ it?
#103860
A
leave
B
had left
C
could have left
D
was to leave.
推荐题目
With all the food supply ___, the researchers had to put an end to the wildlife protection project and returned home.
#103075
A
running out
B
to use up
C
run out of
D
using up
I ______ this book for two weeks. I have to return it now.
#101638
A
have borrowed
B
have kept
C
have lent
D
have returned
---Guess what, we’ve got our visas for a short-term visit to the UK this summer. ---How nice! You ______ a different culture then.
#102079
A
will have experienced
B
have experienced
C
have been experiencing
D
will be experiencing
Since the opening and reform policy, China a boom in its economy.
#102286
A
enjoys
B
has been enjoying
C
enjoyed
D
having enjoyed
His sister left home in 2009, and＿＿since.
#101520
A
had not been heard of
B
has not been heard of
C
had not heard of
D
has not heard of