It’s said that the early European playing-cards ______ for education.
#99874
A
have designed
B
were designed
C
have been designed
D
were being designed
推荐题目
--Mom, can we move into our new house this weekend? ---No, it _________.
#102391
A
is painted
B
is painting
C
was painted
D
is being painted
---I happened to meet Lily yesterday. ---Lucky dog! You _______ each other for exactly two years.
#100161
A
haven’t seen
B
hadn’t seen
C
didn’t see
D
don’t see
The construction of the two new railway lines   by now.
#99633
A
have been completed
B
has been completed
C
has coompleted
D
have completed