– Why you didn’t handed in your exercise paper?–Sorry, but I ____ that it should be turned in today.
#100688
A
didn’t know
B
hadn’t known
C
haven’t known
D
don’t know
推荐题目
 The pen I____ I _____is on my desk, right under my nose.
#104337
A
think; lost
B
thought; had lost
C
think; had lost
D
thought; have lost
— Can you answer my question? --Sorry, I____________ . Would you repeat that question?
#103803
A
hadn’t listened
B
haven’t listened
C
don’t listen
D
wasn’t listening
We are told that more new teaching buildings ________ next year. 
#101533
A
build
B
was built
C
has built
D
will be built