We should start at (once) and not waste (too) much time (to argue) (about) the procedure.

admin2008-10-10  24

问题 We should start at (once) and not waste (too) much time (to argue) (about) the procedure.

选项 A、once
B、too
C、to argue
D、about

答案C

解析 改为on arguing。
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