－Have you seen Mr. Black these days, Jack?－Yes, I met him when I ________ in the street yesterday.
#49575
A
walked
B
was walking
C
have walked
D
is walking
推荐题目
I’m really looking forward to J.K. Rowling’s new book ________.
#50644
A
coming out
B
coming on
C
putting out
D
putting on
She looks very busy . I want to help her , but I don't know ___________ .
#50250
A
what to do
B
what to do it
C
how to do
D
why to do
It’s necessary us English well.
#49684
A
for , to learn
B
for , learning
C
of , learning
D
of , to learn