A．Airline pilots must start to learn English in 21st century.B．As a bank clerk he should learn special English to meet the needs of his work.C．People can benefit from intermediate level of English in their own field.D．Teachers with intermediate level of English can teach their students well.
A．Airline pilots must start to learn English in 21st century.
B．As a bank clerk he should learn special English to meet the needs of his work.
C．People can benefit from intermediate level of English in their own field.
D．Teachers with intermediate level of English can teach their students well.