【C5】A．originsB．originalsC．discoveriesD．resources

A．sourceB．sourcesC．resourceD．resources

【C5】A．originsB．sourcesC．basesD．discoveries

【C3】A．meansB．waysC．sourcesD．resource

A．experimentsB．checksC．discoveriesD．works

【C2】A．originsB．originalsC．sourcesD．resources

Britains mineral______include oil, coal and gas deposits.A．originsB．sourcesC．resourcesD．as