看到这么多血让她感到头晕目眩。

The sight of so much blood made her ___feel ___faint.

开始感到头晕，她靠在墙上寻求支撑。

Starting to ___feel ___faint, she leaned against the wall for support.

在烈日下站了几个小时后，他开始感到晕眩，不得不坐下来。

After standing in the hot sun for hours, he began to ___feel ___faint and had to sit down.