The Channel Islands have been continuously under British role since ______.

A．written for all language learners
B．an advertisement
C．a story
D．a careful introduction to CELS

A．GELS is able to be used for all kinds of tests
B．CELS is suitable for the people all over the world
C．GELS is made up of CELS Higher, CELS Vantage and CELS Preliminary
D．CELS is to test your spoken English