Question

I began to observe him whenever I boarded his bus pick out the sub ordinate and state its type

Answer 1

Answer:

Whenever I boarded his bus.

Explanation:

Question:

I began to observe him whenever I boarded his bus

Answer:

Whenever I boarded his bus.

*A complex sentence conveys one main idea and at least one subordinate idea .The main idea is a main clause(a simple sentence which conveys a complete meaning),and a subordinate clause (a part of which depends on the main clause to complete its meaning).