1.   He did not get a chance to deepen his knowledge of Poland.

2.   During the honours years, students will be able to widen and deepen their knowledge of the Russian language and Russian culture.

3.   After hiring, it gives new analysts as long as a year to deepen their knowledge about the industries before they publish ratings on specific companies.

4.   Mrs. Clinton hopes to deepen her knowledge of Middle Eastern policy issues and curry favor with an important domestic political constituency, American and Israeli officials said.

5.   The son of a Venezuelan Marxist lawyer, Carlos was named Ilich in honor of Vladimir Ilyich Lenin and was sent to Moscow to deepen his knowledge of Marxism.

6.   SCIENTIFIC research always has a noble tint, a lofty striving to widen and deepen human knowledge, to be able to understand a little bit more about something.

7.   Sayako, who works at the Yamashina Ornithology Institute outside Tokyo, said she welcomes the opportunity to deepen her knowledge of South American birdlife in a unique environment.

8.   The Internet can help teenagers understand and deepen their knowledge in every aspect.

9.   Malaysian Premier Mahathir Mohamad Friday called on inventors to avoid keeping their discoveries a secret and urged Moslems to deepen their knowledge of science to become more self-reliant.