Although the plan hasn’t been approved present, he insists carrying it out.A. at; atB. on;

Although the plan hasn’t been approved present, he insists carrying it out.
A. at; at
B. on; at
C. at; on
D. on; on

A. at; atB. on; at(答案→)C. at; on D. on; on解析：考查固定短语中的介词。At present目前，现在；insist on坚持；句意：尽管这个计划现在没有被批准，但是他还是坚持执行了下去。故C正确。

我也是这个答案