Q1. Choose the most appropriate word to complete the given sentence: The City Centre Mall was crowded ____________ tourists.
Explanation
The standard collocation is crowded with people, tourists, vehicles, or other things that fill a place. Therefore, the sentence should read: The City Centre Mall was crowded with tourists. By is used for agency in passive constructions, not for the people filling a place. Of does not form the correct phrase after crowded in this meaning. From indicates source or origin, so it cannot express that tourists were present in large numbers inside the mall.
