"Because" vs "Because of"

I prefer driving .......... I am afraid of flying.

• Because

• Because of

We canceled the trip .......... the snow

• Because

• Because of

We hurried indoors .......... it was snowing

• Because

• Because of

She can’t walk ........... her illness

• Because

• Because of

......... the date problem, I couldn’t win the argument

• Because

• Because of

She couldn’t run ......... her old age

• Because

• Because of

We could not reach on time .......... the traffic was terrible

• Because

• Because of

Steven went to the shopping center last Sunday ......... he needed a new laptop

• Because

• Because of

Pam and her parents want to visit the city zoo .......... they want to see the baby panda

• Because

• Because of

More and more people get to work late every day ........ the heavy traffic in the city center

• Because

• Because of