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Can I say,
(a) He looked as pale as death and his hands was trembling / trembled.
(b) He was pale / His face was pale and his hangs was trembling / trembled.
Comments  
Hi,
Can I say,
(a) He looked as pale as death and his hands were trembling / trembled.
(b) He was pale / His face was pale and his hands were trembling / trembled.

Yes.
Clive
Can I say,

(a) He was scared. His face was as pale as death.
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Hi,

There's an idiomatic expression which seems appropriate to me here: He was as white as a sheet.
Hi,

Yes.

But this is OK, too.

(a) He was scared. His face was as pale as death.

Best wishes, Clive
Can I say,

(a) He was scared as pale as death.
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Hi,

Can I say,

(a) He was scared as pale as death.

Doesn't sound good.

Clive