如果他感到受到威胁，他往往会变得有攻击性。

If he feels threatened, he often becomes ___aggressive.

她在会议期间表现出的攻击性态度令人担忧。

Her ___aggressive attitude during the meeting was concerning.

在压力大的情况下，一些人可能会表现出攻击性行为。

In stressful situations, some people may act ___aggressive.