What was the plane equipped with

A．English learning at school usually takes a long time.
B．More and more people want to learn English nowadays.
C．It is not necessary for many people to go to English speaking countries to learn English.
D．It is more difficult to learn English quickly than to learn it slowly.

A．English is the easiest language to learn.
B．English is as easy to learn as your mother tongue. '
C．English can be learnt in six weeks.
D．It is easier to learn English on radio or TV.