他精心设计了一个看似合理的谎言来掩盖自己的错误。

He ___contrived a plausible lie to cover up his mistake.

尽管时间紧迫，他还是设法想出了一个完美的计划。

Despite the tight deadline, he ___contrived a perfect plan.

她精心设计了一个借口来解释迟到。

She ___contrived an elaborate excuse to explain her lateness.