The correct answers are underlined:
She had always wanted to go into outer space because her father was an astronaut; besides, she loved physics and astronomy.
The fire fighters battled the blaze bravely; meanwhile, their families waited anxiously for news.
She could have applied for a scholarship; instead, she chose to take a student loan and pay the tuition fee.
First he whipped the eggs and added them to the flour; then, he baked the mixture.
Explanation: