What type of Sentences are these?

[Sweetbottoms2005]

Many companies are now doing business in international circles.

If you travel abroad on business, you may bring gifts for business partners.

In Latin America a knife is not a proper gift; it signifies cutting off a relationship.

When Arabs, Middle Easterns, and Latin Americans talk, they stand close to each other.

Unless they are old friends. Europeans do not address each other by first names; consequently businesspeople should not expect to do so.

In the Phillipines, men wear long embroidered shirt called a barong, and women wear a dress called a terno.

The choices of what kind of sentence:

Simple, Compound, Complex and Compound-complex

Thanks so much

[Cerberus™]

Why don't you try it yourself first, and explain your choice in each case? That way, it is easier for others to help. If you have no idea where to begin, search Google for a page on "compound complex sentence" and study it.

[Sweetbottoms2005]

I have I the following answers..

Simple
Complex
Compound
Compound-complex
Complex
Compound

[Cerberus™]

I believe your answers are correct, except no. 4 and no. 5: I'd call no. 4 complex, no. 5 compound-complex.

In no. 4, the Arabs and others separated by commas are not clauses, that's why there are no coordinate clauses in it.

In no. 5, the full stop is wrong: it must be a comma. Otherwise, there'd be two sentences. The "unless" clause is subordinate; the next two clauses, separated by a semicolon, are coordinate.