What is a preposition and what is it used for?

Iwas told to ask others what they think life is.

True or false matisse was afraid to risk using wild colors in his work

Which sentence contains a comma splice? marco rode to school on his bicycle this morning, he arrived an hour early. marco, who enjoys riding his bicycle to school, arrived just before the bell today. marco rode to school on his bicycle on monday, tuesday, and wednesday. marco, who rode to school on his bicycle this morning, arrived an hour early. mark this and returnsave and exit