两位领导人在签署协议后握手。

The two leaders ___shook ___hands after signing the agreement.

当我第一次见到某人时，我总是握手。

I always ___shake ___hands when I meet someone for the first time.

我的朋友们都和他们握手了，但我感到太尴尬了。

My friends all ___shook ___hands with them, but I felt too embarrassed.