— Hello, you look tired today. —Yes, I slept too late yesterday evening. I  my homework and forgot the time.
#42512
A
was doing
B
did
C
have done
D
had done
推荐题目
By the time of last year, she ______ the piano for five years.
#38247
A
learnt
B
has learnt
C
had learnt
D
will learn
I regret _______ you that the tickets ______ .
#39612
A
telling, have sold out
B
to tell, has sold out
C
to tell, have been sold out
D
telling, have been sold out
It’s said that he started his own firm when he was only 24. 
#42478
A
built
B
established
C
invented
D
created.