Home-made parts are being ________ for imported ones
（A）substituted
（B） to substitute
（C） having substituted
（D） to have substitute
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- 1It’s believed that if a book is ____, it will surely ____ the reader.
- 2Hearticles for our wall-newspaper these three years, and he about forty articles.
- 3John and I ____ friends for eight years.We first got to know each other at a Christmas party.But we _______ each other a couple of times before that.
- 4A series of attempts ___, we came to a wonderful solution to the problem.
- 5It is proposed that this matter _______ at the next meeting.
