31 There are about one billion who use English as the lingua franca of international communication.
32 Differences between which languages are explained in coursebooks languages can cause some problems to learners.
33 A great number of people whose native language is not English speak English as a foreign language .
34 English, which enjoys more universality than any other language, has been regarded as a lingua franca.
35 It is a camping shop which has a lot of good equipment.