1 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
2 Finding information in today's world is easy. The ____ is how you can tell if the information you get is useful or not.
A. ability B. competition C. challenge D. knowledge
3 Last week, my kids along with other kids from the neighbourhood ____ to help me wash my car.
A. encouraged B. conducted C. explained D. volunteered
