In the fading light she could not make out his expression.

In the gathering darkness she could not make out his expression.

The contrast between the light and shade was too great for him to make out her expression, but he didn't need to.

I tried to make out his expression, but the details were too fuzzy.

She glanced quickly at his face, but couldn't make out his expression in the dark.

He didn't move, and she couldn't make out his expression.

He saw her turn and look at him, but couldn't make out her expression in the dark.

He tried to make out her expression, but she was too far away.

But Jillian's face was turned to the side, away from the knife, and he couldn't make out her expression.

Her face was in shadow, and he could not make out her expression.