The new suspension bridge ___ by the end of last month.
A. has been designed
B. had been designed
C. was designed
D. would be designed
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That suit __ over 60 dollars.
A. had costed
B. costed
C. is costed
D. cost
___ many times, the boy still didn't know how to do the exercises
A . Having taught
B . Having been taught
C . taught
D . Teaching
Some of the hotels in my hometown_________.
A . have now been rebuilding
B . are now rebuilding
C . are now being rebuilt
D . are rebuilt now
--- What do you think of the book? ---Oh, excellent. It's worth ___ a second time.
A . to read
B . to be read
C . reading
D . being read