她用帽子和围巾伪装自己，没人认出她来。

She ___disguised herself with a hat and scarf, so no one recognized her.

他用微笑掩饰了自己的失望。

He ___disguised his disappointment with a smile.

他戴了一顶假发和眼镜作为伪装。

He wore a wig and glasses as a ___disguise.