直到你在我的心中种下了疑虑，我才自信起来。

I was confident till you ___planted doubts in my mind.

当社会试图植入“共同生活”的理念时，也应考虑这个问题的短期解决方案。

While a society is trying to ___plant the idea of "living together," the short-term resolution for this problem should be considered.

侦探在证人的心中种下了怀疑的种子。

The detective ___planted a suspicion in the witness's mind.