In the following question, choose the option that best completes the sentence.
The guest would have arrived earlier but he was _______ in traffic.

Fill each gap with the most appropriate option from the list provided.
We had to ..... the group headed by Taiwo.

Choose the option that best completes the sentence.

My father loves bringing ___ old memories. 

In each of the following questions, select the option that best completes the gap. 

He went ____ the corridor, looking for the principal's office. 

Choose the option that best completes the sentence.

Why do children _____ adults' conversations?