Hannibal passed through Gaul, and then he crossed the Alps, and then came
down into Italy, and then he defeated several Roman generals.

Change the following complex sentences to compound sentences.

When he asked me the question, I answered him courteously.
Morse, the man who invented the telegraph, was a public benefactor.
When spring comes, the birds will return.

Contract the following complex sentences into simple sentences by changing
the verb in the dependent clause to a participle. Notice all the other
changes.

A ship which was gliding along the horizon attracted our attention.
I saw a man who was plowing a field.
When the shower had passed, we went on our way.
I heard that he wrote that article.
That he was a foreigner was well known.
I am not sure that he did it.
Every pupil who has an interest in this work will prepare for it.

Change the following compound sentences to complex sentences.

+Model+.--Morning dawns, and the clouds disperse. When morning dawns, the
clouds disperse.

Avoid swearing; it is a wicked habit.
Pearls are valuable, and they are found in oyster shells.
Dickens wrote David Copperfield, and he died in 1870.