【C18】A．onB．inC．byD．to

Four years of service entitle Jack ______ a pension.A．onB．inC．atD．to

Kunming is _____the southwest of China.A. onB. inC. to

【C8】A．onB．inC．atD．to

【C17】A．onB．inC．byD．for

【C18】A．onB．inC．overD．of

Jamie wants to speak tome（)private.A. onB. inC. to