"While I was at work, Jack cleaned the bathroom." Based on its structure, what type of sentence is this?

"Which shoes did she wear yesterday?" What part of speech is "Which"?

"He had no comment concerning the scandal." What part of speech is "concerning"?

"He loved the gift that his mother sent us, but I abhorred it." Based on its structure, what type of sentence is this?

Which sentence contains an error of pronoun-antecedent agreement?

A predicate adjective:

"My boyfriend ____ attacked by a group of hooligans."

A sentence that ends in a question mark is most likely:

Choose the correct word order:

"Who wants to know?" Based on its purpose, what type of sentence is this?

Which of the following is a complex sentence