It is remended that the project until all the preparations have been made.
A. is not started
B. will not be started
C. not be started
D. is not to be started
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A. is not started
B. will not be started
(答案→)C. not be started
D. is not to be started
解析：考查虚拟语气。句中remend作“建议”讲，从句用should + v原形，should可以省略。句意：建议项目应当开始直到所有的准备都做好了。