帮我看看这句英文The bus ,--------was already full,was surrounded by

The _____ bus was full of passengers.(crowd) the bin was full full what he said was already r____ by the police. She was sitting on the floor surrounded by books.此处的by可以换为wi 帮我看看这句英文对不对, 帮我看看这句英文对不对. 帮我看看这句英文对吗? The school bus was——by a thick fog. The bus was crowded.（保持句意不变） The bus was ___ ___ people. The teapot was full of water同义句转换 The box was full of books.改为同义句 by the time I got outside, the bus had already left是什么句